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Guide

-Reveal the Hidden Secrets-
"Reveal Hitomi's secret buried deep inside."
—Somnium description

PSYNCIN' IN THE MOUNTaiN is a dreamworld featured in AI: THE SOMNIUM FILES, based on the Okutama Mountains.

It is a Somnium world created from Hitomi Sagan's dream by Psync System. ABIS investigated this Somnium to gain information about the murder of Manaka Iwai.

Mental Locks[]

The location of this Somnium is located in a Dark Forest, and one of its characteristics is that the player need to find objects in the darkness. As the progress deep within, the visual range around the player will become smaller and smaller, and there will be obstacles such as tree trunks that prevent the player from moving in a straight line to the target object.

In addition, most of the options in this Somnium will not provide TIMIE to the player, and the few options that will bring the player TIMIE will not reveal the nature in advance, and most of these options are assigned to Rocks. Negative types are not included in randomly obtained TIMIEs, however.

Mental Lock #1 - Light it up.[]

MOUNTaiN Mental Lock 1

In the darkness, the only object the player can investigate in the forest is the Flower Bud. Inspect it and choose Worship, which takes 15s and does not provide TIMIE, can get Mental Lock #1 unlocked.

In summary, to unlock Mental Lock #1:

  • Worship on Flower Bud (15s)

Mental Lock #2 - Shake ???[]

MOUNTaiN Mental Lock 2

After entering Mental Lock #2, three Rocks appeared nearby, marked as Rock 1, 2, and 3 respectively. Investigate and perform one of the actions obtains a random TIMIE, but actions that only consume 5s will not bring any. The other object is Hole in Tree 1, performing Stick Hand In on it can enter Phase 2, the section where Renju appears. Following the trail composed of firefly light spots can go forward from the flower bud to find Hole in Tree 1.

After entering Phase 2, the player will reappear near the spot of Rock 1 and need to find Renju. But before that, the player has to find the Photograph, which is located in Hole in Tree 2 and requires the player to perform Tackle to obtain it. There will be a trail from Rock 1 leading to Renju's location, and then this trail will connect to Hole in Tree 2. The player can find the correct direction to Hole in Tree 2 according to the relative positions of themselves and Rock 1 on the map, find Renju after obtaining the Photograph, perform Show Picture on him and Mental Lock #2 will be unlocked.

In summary, to unlock Mental Lock #2:

  • Stick Hand In on Hole in Tree 1 (15s) -> Tackle on Hole in Tree 2 (15s) -> Show Picture on Renju (15s)

Mental Lock #3 - Shake ???[]

MOUNTaiN Mental Lock 3

After handing the Photograph to Renju, Hole 1 will appear nearby, and there will be a trail for the player to point to its location. Perform Jump In to enter Phase 3, the section where you need to find Hitomi and give her an item. But this time, Hitomi is different from Renju in that she will keep running around the map until the player finds the required item. Firefly trails appearing on the ground are no longer clearly indicative either. Therefore, reach the newly appeared Hole in Tree 3 after coming to Phase 3, perform Scream to get the Bracelet.

The player can spot Hole in Tree 3 by constantly checking the mini map and identifying the location of the item name displayed in the dark distance. After performing Scream, Hitomi will stop running. Then, perform the newly-appeared option Stick Hand In to obtain Bracelet, find and reach Hitomi, perform Show Bracelet on her and Mental Lock #3 will be unlocked.

Since the player will no longer be able to investigate Rocks in Mental Lock #4, it is recommended to interact with them here or during Mental Lock #2 and collect TIMIE, which will help in the final move.

In summary, to unlock Mental Lock #3:

  • Jump In on Hole 1 (30s) -> Scream on Hole in Tree 3 (15s) -> Stick Hand In on Hole in Tree 3 (15s) -> Show Bracelet on Hitomi (15s)

A possible optimal path for better TIMIE can be:

  • Option with consuming 10 or 15s on Any Rock (10s or 15s, Random) -> Jump In on Hole 1 (30s) -> Scream on Hole in Tree 3 (15s) -> Stick Hand In on Hole in Tree 3 (15s) -> Show Bracelet on Hitomi (15s)

Mental Lock #4 - Reveal the secret.[]

MOUNTaiN Mental Lock 4

After handing the Bracelet to Hitomi, Hole 2 will appear nearby, and there will be a trail for the player to point to its location, just like before. Perform Jump In to enter Phase 4, the final section. Here, the only object the player can investigate is Cluster Amaryllis. Try to look for the text indicating the object that appeared in the distance around the place where the player is located, and go in that direction, and then perform Dig Up on it. After performing this, Hole 3 will appear in front, execute Jump In on it to unlock Mental Lock #4. Since this option will consume 120s, the TIMIE collected before can be used here.

In summary, to unlock Mental Lock #4:

  • Jump In on Hole 2 (30s) -> Dig Up on Cluster Amaryllis (15s) -> Jump In on Hole 3 (120s)

A possible optimal path for better TIMIE can be:

  • Jump In on Hole 2 (30s) -> Dig Up on Cluster Amaryllis (15s) -> Jump In on Hole 3 (120s1/2, 1/4, 1/8 or 1/10)

TIMIE Pool[]

The following are the pools of TIMIEs that spawn during PSYNCIN' IN THE MOUNTaiN. Certain choices in the Somnium will drop a random selection of TIMIE from "Pool MOUNTaiN". During the first 3 minutes, the 1/2 TIMIE has an almost 50% chance of dropping from the pool, followed by the 1/4, [20], 1/8, and 1/10 TIMIEs. From 3 minutes to the last 90 seconds, the 1/2 and the [20] TIMIEs are removed, with the 1/8 and 1/10 TIMIEs having higher odds than the 1/4 TIMIE. In the last 90 seconds, the odds for 1/10 increase even more, past the 50% mark. This pool offers benefitial TIMIEs from the getgo, with the best TIMIE exponentially increasing in chances over time.

Time Span 360s-180s 180s-90s 90s-0s
TIMIE Value 1/2 1/4 [20] 1/8 1/10 1/8 1/10 1/4 1/10 1/8 1/4
Percentage 49.30% 28.17% 14.08% 7.04% 1.41% 36.36% 36.36% 27.27% 58.33% 25.00% 16.67%

Objects of Interest[]

This Somnium takes place within a small forested area in the Okutama Mountains. The availability of objects changes after jumping into holes as you progress the Somnium. These will be labeled as Phases, wherein jumping into each hole changes the phases of the Somnium.

Object Description
Availability Action Cost TIMIE Effect
Flower Bud A flower bud resting in a soft patch of ground. It's unclear what variety of flower it is. Aiba found it while following a firefly in the darkness.
1st Phase;
Mental Lock #1
Smell 15s
Detail:
As Aiba begins smelling the flower bud, she notes that it does not have any particular smell to it. However, something about it made her dizzy, nearly blacking out on the spot, before she retreated from the bud. Date, worried it might be poisonous, tells her to be careful, to which Aiba mocks him for sharing caring words, wondering if he's hiding something.
Figure Out Type 10s
Detail:
Aiba states that she can't figure out the identity of the flower as it is, only determining that it's some sort of lily.
Worship 15s
Detail:
With instructions to "worship" it, Aiba prays to the flower as if she were mourning the dead. After praying, the flower begins to bloom, protruding a small bit. Date is unclear as to why this happened, but the blooming allowed a row of fireflies to appear all around the Somnium.
This action unlocks Mental Lock #1!
Cluster Amaryllis The flower bud, now in full bloom as a cluster amaryllis, also known as a lycoris flower. Over the course of the Somnium, it became a flower in full bloom.
4th Phase only Investigation 15s
Detail:
Aiba describes the flower as a cluster amaryllis, also known as a lycoris. She explains how it's also known as a death flower due to its poisonous nature, and how in the language of flowers it means "passion," "reunion," and "sad memories."
Grab 15s
Detail:
Despite feeling awkward about it, Aiba decides to grab and pull from the base of the flower, attempting to remove it. However, she concludes that the flower won't budge, as its roots are strong in the ground.
Dig Up 15s
Detail:
Aiba begins digging the ground around the lycoris flower, attempting to dig up the flower. But in the middle of the process, the ground begins to shake, and the mount of dirt in which the flower stood collapses and caves in. All that remains is yet another hole in the ground, with Aiba standing on the edge.
This action progresses further into unlocking Mental Lock #4.
Worship 15s
Detail:
Aiba prays to the lycoris flower, but stops after a while, as nothing was occurring. Date states that he expected it, but was still disappointed.
Hole in Tree 1 A hole found on the side of a tree. It's so large that Aiba is capable of fitting inside the whole.
1st Phase;
Mental Lock #2
Tackle 15s ?

(Pool MOUNTaiN)

Detail:
With that order, Aiba complains that a beetle may fall off the tree, which Date response by saying this isn't one of the "animal friend video games" that she plays. After tackling the tree, Aiba reports with disappointment that nothing fell, surprising Date that Aiba wanted something to fall.
Peek Inside 15s
Detail:
Looking inside, Aiba reports that she can't see anything inside, as it is unnaturally dark. She also states that she can hear the faint sound of wind inside, to which Date concludes must mean it is hollow inside.
Scream 15s
Detail:
With that order, Aiba proceeds to scream "Stop giving me orders!" into the hole. Date, realizing that she had these emotions bottled up, apologizes for all his commands in the past. Aiba notes that her voice echoes inside the tree, which Date concludes means that it is cavernous inside. Subsequent actions on this object will also be amended with the word "please."
Stick Hand In 15s
Detail:
Despite being worried about being eaten by some mysterious figure, Aiba places her arm inside the hole to sense what's inside. She is pulled into the hole, and wakes up back in the forest, now darker than before. A voice can be heard in the distance. which the pair recognize. Date tells Aiba to continue.
This action changes to Phase 2!
Hole in Tree 2 A hole found on the side of a tree. It's about as large as a soccer ball.
2nd Phase only Stick Hand In 15s ?

(Pool MOUNTaiN)

Detail:
Despite being worried about being sucked inside a tree hole again, Aiba places her arm inside the hole to sense what's inside. Nothing occurs from the interaction, which disappoints Date. When Aiba asks if he wanted to see her getting sucked into the tree, he responds with "Yeeeah?"
Peek Inside 15s
Detail:
Looking inside, Aiba reports that she can't see anything inside, as it is unnaturally dark. She also states that she can't find anything that could indicate where wind could flow from.
Tackle 15s
Detail:
Aiba tackles the tree, her shoulder striking the hole, which causes a piece of paper to fall from the tree. As she looks at it, she notices that it's a picture of Hitomi, Renju, and Manaka. As Date notes at how young they all look, he tells her to hold on to the photograph.
This action gives you the Photograph!
Scream 15s
Detail:
With that order, Aiba proceeds to scream "The emperor is naked!" into the hole. Date asks about the empress, and Aiba proceeds to scream "The empress is naked!" This excites Date, encouraging him to move to this hypothetical empire. After their banter is over, the two of them state that they doesn't see anything inside.
Hole in Tree 3 A hole found on the side of a tree. It's about as large as a capybara, which Date notes is rather large.
3rd Phase only Peek Inside 15s
Detail:
As she places her head inside the hole, Aiba finds a web inside, which Date notes must be a spider web. As she removes her head, Aiba complains that she has spider webs all over her face.
Scream 15s Before choosing Scream:
Detail:
With that order, Aiba proceeds to scream "Hitomi... Date likes Hitooomi!" into the hole. Date tries to stop her, saying that, even if Hitomi won't remember the Psync, it's still embarrassing to him. At Aiba's call, Hitomi stops running around the forest, shocking Date.
This action progresses further into unlocking Mental Lock #3.
Stick Hand In After choosing Scream:
Detail:
Despite being worried about being sucked inside a tree hole again, Aiba places her arm inside the hole to sense what's inside. She finds a cord bracelet, which appears on his wrist, and wonders who it belongs to. Date tells her to hold on to it, as it might be important.
This action gives you the Bracelet!
Tackle 15s ?

(Pool MOUNTaiN)

Detail:
Aiba attempts to break down the tree, but her tackle doesn't yield any results. She tells Date that perhaps they should pursue a more peaceful route instead.
Renju Renju Okiura, appearing as a 19 year old. He's looking around his surroundings, calling out into the darkness.
2nd Phase only Talk to Him 15s
Detail:
Aiba asks Renju what he's doing in this forest, but he doesn't respond, perhaps because of where they are.
Flirt with Him 15s ?

(Pool MOUNTaiN)

Detail:
Aiba begins flirting with Renju, posing in front of him and leaning her chest forward, attempting to lure him in. Her flirtatious advancements yield no response from Renju, and while Date attempts to apologize for making her do this, Aiba states that the fault lies in Renju's bad tastes.
Inspect Him 10s Without Photograph:
Detail:
Aiba notes that, despite looking younger, this is indeed Renju Okiura as he appeared around 20 years ago, which Date thinks is a long time.
Show Picture 15s With Photograph:
Detail:
Aiba shows Renju the photograph, who takes it from her hand. With the photograph in hand, he runs off, disappearing into the darkness.
This action unlocks Mental Lock #2!
Hit Him 15s
Detail:
Aiba attempts to punch Renju for being a coward and neglecting his responsibilities as Mizuki's father. However, the punch does not connect, as Renju's body swerves out of the way before she can make contact. Date speculates that, since Renju is still a teenager in this time, he wouldn't know about Mizuki's existence yet.
Hitomi Hitomi Sagan, appearing as a 19 year old. She was initially running around near Rock 2, but stops when she hears Aiba's voice.
3rd Phase
(Choose Scream in Hole in Tree 3)
Hug Her 15s
Detail:
Aiba calls to Hitomi as she embraces her in a hug. After a bit, Aiba realizes that, despite dressing modestly, Hitomi has a curvaceous body underneath her clothing. Date congratulates Aiba on her good work in finding this critical information.
Talk to Her 15s
Detail:
Aiba asks Hitomi what she is doing in the forest, but she doesn't respond. Date concludes that Hitomi can't hear her, and states that she may be looking for something.
Touch Her 15s ?

(Pool MOUNTaiN)

Detail:
With Date's order, Aiba asks where to touch her, and as he fumbles nervously around his words, she reminds him that this rendition of Hitomi may be a minor. Date declares that she should touch her stomach, and Aiba reluctantly complies. At Aiba's touch, Hitomi begins to ripple from the contact. Date asks her about Hitomi's softness situation, and she reports that Hitomi was soft, nice, and pliant, with no noticeable abdominal muscles. Date declares this as valuable information, and Aiba calls him an old pervert as a response.
Inspect Her 10s Without Bracelet:
Detail:
Aiba notes that this is Hitomi as she appeared approximately 20 years ago, similar to Renju before. Date wonders if something happened at around this time in their life.
Show Bracelet 15s With Bracelet:
Detail:
Aiba shows Hitomi the bracelet, who takes it from her hand as Aiba asks if she remembers this. With the bracelet in hand, she runs off, disappearing into the darkness. Date tells Aiba to follow after her.
This action unlocks Mental Lock #3!
Hole 1 A hole in the ground, by some dead tree branches. Renju ran into this direction when he was given the photograph, creating the hole, as it was not present beforehand.
Mental Lock #3;
2nd Phase
Jump In 30s
Detail:
As Aiba hesitates, Date encourages her to jump in. Aiba falls in, and appears once again at the forest, growing even darker than before. Aiba hears another voice, calling for Manaka, and they recognize it as Hitomi's voice. Date tells her to look for her.
This action changes to Phase 3!
Hole 2 A hole in the ground, by a tree. Hitomi ran into this direction when she was given the bracelet, creating the hole, as it was not present beforehand.
Mental Lock #4;
3rd Phase
Jump In 30s
Detail:
With nothing left to do, Aiba jumps into the hole. As she awakens, she finds the forest pitch black, and asks Date what is going on. He tells her that he can't see anything, reassuring Aiba that she's not malfunctioning. Date tells her to feel her way around the area.
This action changes to Phase 4!
Hole 3 A large hole in the ground, created when Aiba attempted to dig up the cluster amaryllis that was blooming in the forest.
4th Phase
(Choose Dig Up on Cluster Amaryllis)
Jump In 120s
Detail:
Without protest this time, Aiba jumps into the hole (in slow motion) and appears again within the forest, now illuminated by the moonlight. There, Aiba sees Hitomi and Renju, standing by a large hole, and inside it, the body of Manaka Iwai rests, he left eye removed.
This action unlocks Mental Lock #4, awakening Hitomi from the dream!
Rock 1 A rock of no particular note. Its layout changes with each Arrangement.
Mental Lock #2 onwards
1st Phase to 3rd Phase
Investigate 5s ?

(X)

Detail:
As Aiba examines the rock, she determines that it's a simple rock without any discernible pattern.
Worship 10s ?

(Pool MOUNTaiN)

Detail:
As Aiba questions his judgement, Date says that gods live in the rocks, too, which Aiba identifies as a traditional Japanese belief. With insistence, she begins praying, and after finishing, determines that she feels "a sense of emptiness." Date concludes that it was a waste of time, which Aiba considers contradictory to his orders.
Kick 15s ?

(Pool MOUNTaiN)

Detail:
Aiba proceeds to kick the rock, which yields no results, aside from pain on her foot. After she complains about the pain twice, Date apologizes.
Lift 20s ?

(Pool MOUNTaiN)

Detail:
With Date's insistence, Aiba attempts to lift up the rock, but fails to lift it. Date asks if she found anything, which she states she obviously didn't.
Rock 2 A rock of no particular note.
Mental Lock #2 onwards
1st Phase to 3rd Phase
Lift 20s ?

(Pool MOUNTaiN)

Detail:
With Date's insistence, Aiba attempts to lift up the rock, but fails to lift it. Date asks if she found anything, which she states she obviously didn't.
Kick 15s ?

(Pool MOUNTaiN)

Detail:
Aiba proceeds to kick the rock, which yields no results, aside from pain on her foot. After she complains about the pain twice, Date apologizes.
Worship 10s ?

(Pool MOUNTaiN)

Detail:
As Aiba questions his judgement, Date says that gods live in the rocks, too, which Aiba identifies as a traditional Japanese belief. With insistence, she begins praying, and after finishing, determines that she feels "a sense of emptiness." Date concludes that it was a waste of time, which Aiba considers contradictory to his orders.
Check 5s ?

(X)

Detail:
As Aiba examines the rock, she determines that it's a simple rock without any discernible pattern.
Rock 3 A rock of no particular note.
Mental Lock #2 onwards
1st Phase to 3rd Phase
Worship 10s ?

(Pool MOUNTaiN)

Detail:
As Aiba questions his judgement, Date says that gods live in the rocks, too, which Aiba identifies as a traditional Japanese belief. With insistence, she begins praying, and after finishing, determines that she feels "a sense of emptiness." Date concludes that it was a waste of time, which Aiba considers contradictory to his orders.
Investigate 5s ?

(X)

Detail:
As Aiba examines the rock, she determines that it's a simple rock without any discernible pattern.
Kick 15s ?

(Pool MOUNTaiN)

Detail:
Aiba proceeds to kick the rock, which yields no results, aside from pain on her foot. After she complains about the pain twice, Date apologizes.
Lift 20s ?

(Pool MOUNTaiN)

Detail:
With Date's insistence, Aiba attempts to lift up the rock, but fails to lift it. Date asks if she found anything, which she states she obviously didn't.

Hidden Item[]

  • The hidden item is located near Rock 2, along the edge of the Somnium. It's easiest to find after jumping from Hole 2, when the player can see the eyeball shimmering behind a rock. Turn around to investigate can easily get it.

Gallery[]

Trivia[]

  • This is the only Somnium which is based off a location that Kaname Date never visits over the course of the game.
  • The dialogue used to refer to the time frame in this Somnium appears to be inconsistent, with Aiba and Date stating that Renju and Hitomi's appearances are from 20 years ago, and how Hitomi is a minor (despite being 19 years old). It's unclear why the time frame appears relatively inconsistent with the rest of the story, especially since Date and Aiba know about Manaka's disappearance happening 18 years ago instead of 20.
  • When choosing "Tackle" on the Hole in Tree 1, Aiba states that tackling it may cause a beetle to fall off, which Date responds with "This isn't one of your animal friend video games..." This is a reference to the video game series Animal Crossing, in which a human villager lives among various anthropomorphic animals and can perform various actions, such as catching beetles and other bugs on trees.[1]
  • When choosing "Scream" on the Hole in Tree 2, Aiba yells "The emperor is naked!" into the hole. This is a reference to the short tale "The Emperor's New Clothes," where con-men trick an emperor into buying non-existent clothes and parading around naked in public.[2] Date continues the joke onward, bringing the empress into the tale, which is not part of the original story. However, the rest of the interaction, where Date says "I don't see anything" and Aiba responds "Nor do I..." could be a reference to the emperor's reaction to seeing his "new clothes."

Navigation[]

AI: THE SOMNIUM FILES
Media
AI: THE SOMNIUM FILESAI: THE SOMNIUM FILES DEMORaiNBOW AFFaiR Complete SoundtrackREVERIES IN THE RaiN SoundtrackTHOUGHTS REMaiN BELOW Artbook
Characters
Kaname DateAibaIris Sagan/A-setOta MatsushitaMizuki OkiuraBossPewterNew Cyclops Killer
Hitomi SaganMayumi MatsushitaRenju OkiuraMamaShoko NadamiSo SejimaMoma KumakuraRohan KumakuraCyclops Serial Killer
#89FalcoBodyguardsTakero MatsushitaManaka IwaiSaito SejimaYakuza AYakuza BNurseReceptionistMermaidTaxi DriverInspector
Locations
Tokyo
Chiyoda District: Police Headquarters (Boss's Office; Psync Room; Interrogation Room) • Sunfish Pocket
Koto District: Harbor Warehouse District (Cold Storage Warehouse) • Date Residence
Meguro District: Sagan ResidenceTiefblau
Minato District: Sejima ResidenceKumakura OfficeIkume ShrineLemniscateCentral Hospital
Near Kabasaki District: Bloom ParkOld Chemical PlantMatsushita Diner
Shinjuku District: Golden Yokocho (Marble)
Other: Fuchu City (Fuchu Prison) • Akikawa ValleyOkutama MountainsEitoku High
Somnia
SINKIN' IN THE BRaiN (Spoiler) • PSYNCIN' IN THE PaiN (Spoiler)
PSYNCIN' IN THE VaiN (Spoiler) • PSYNCIN' IN THE SWaiN (Spoiler)
PSYNCIN' IN THE SUSTaiN (Spoiler) • PSYNCIN' IN THE CAPTaiN (Spoiler)
PSYNCIN' IN THE CURTaiN (Spoiler) • PSYNCIN' IN THE REFRaiN (Spoiler)
PSYNCIN' IN THE VILLaiN (Spoiler) • PSYNCIN' IN THE MaiN: 1 (Spoiler)
PSYNCIN' IN THE MaiN: 2 (Spoiler)
PSYNCIN' IN THE MOUNTaiN (Spoiler) • PSYNCIN' IN THE CHaiN (Spoiler)
Chapters
Red Route: sigAIsaikAImeikAIsyokubAIrihAI
youdAIjikAIzugAIsyokuzAI
Yellow Route: syougAIseisAIhiAIsanpAI
Green Route: gumAIjukkAIkikAIjinnAIihAI
Purple Route: keitAIgyoukAIkyuusAIsyuurAIirAIdakkAIkekkAI
Pink Route: kenzAIjutAIkokkAIsousAIhakAIkassAI
Organizations
Tokyo Metropolitan Police Department (Advanced Brain Investigation Squad) • Ujisaki Family (Kumakura FamilyKumakura Estates) • Secret Society NAIXATLOZForeign Mercenaries
LemniscateSunfish PocketMarbleTiefblauFamiSto8-12Elgorg
Items
Wadjet SystemEvolverLight Synaptic Nerve Connection DeviceDate's CarShovelForgeOdoroki-man ChocolateGeostationary Satellite X00639
Events
Chemical Plant ExplosionOriginal Cyclops Serial KillingsBreak-In at Sagan ResidenceNew Cyclops Serial KillingsIncident at Minato District HighwayDisappearance of Renju OkiuraOperation: Iris Rescue
Full List of Events

References[]

  1. Wikipedia page for Animal Crossing
  2. Wikipedia page for "The Emperor's New Clothes"
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