My AITSF timeline, mostly done from memory.
The year is noncanon, I only have it in 2000-2026 for my own convinience.
2001/10/26
Iris is born! Love her.
2001/11/01
Manaka talks to So Sejima at the Harbor Warehouse District.
Saito Sejima kills Manaka
2001/11/01
Hitomi and Renju find Manaka and put her in the Forklift at the Cold Storage Warehouse.
Hitomi decides to take care of Iris.
20XX/XX/XX
Hayato Yagyu is found by the Kumakura's and is forced to work as their hired gun, and is given the codename "Falco."
2013/XX/XX
Sakura is hit by an attacker trying to defend Hina.
2013/1X/XX
Hitomi finds Falco injured at Ikume Shrine.
During this time, the two eventually got together.
2013/11/01
Falco talks to Rohan about going clean and is given one final hit. He is tasked with killing Iris and Hitomi.
2013/11/02
Falco goes to Boss, there he decides to swap bodies with Rohan to call of the hit.
2013/11/02
The swap is succesful, but Rohan (in Falco's body,) is already on his way to the Sagan residence.
Boss and Falco show up at the Sagan residence with cops. There, Hitomi injures her shoulder.
2013/11/02
Rohan is sent to Fuchu Prison
Boss and Pewter suggest that Falco go talk to the other half of the Cyclops Serial Killer.
2013/11/03
That goes horribly wrong, and Saito takes Falco (in Rohan's body) to try out the prototype Psync machine and swap bodies.
There was a fatal error which resulted in both of them swapping bodies but losing their memories.
Falco runs from the chemical plant after waking up
Boss finds him a little while later
2013/11/03
Hina is transporting the pod in the same station Falco(Date)(In Saito's body) was being chased by Saito's bodyguards at. He saw her but she didn't see him, I think.
2013/11/04
Boss meets up with So Sejima to tell him about his son.
2014/11/01
Date is given Aiba
2015/XX/XX
Date takes in Mizuki
2018/11/01
Saito remembers everything. Finding Shoko Nadami, he swaps bodies with her and starts stalking Date.
Shoko Nadami commits suicide.
2019/11/01
Shoko Nadami (Renju Okiura) Is Found.
Mizuki is found in the merry go round with an ice pick
Date takes Mizuki to Central Hospital and falls asleep there
Date...psyncs with himself...? (SINKIN' IN THE BRaiN)
2019/11/02
Date talks to Ota, and runs into Iris
Date agrees to take Iris on the investigation
Date meets Hitomi, the girl from his dream.
Date checks on Mizuki
Date psyncs with Mizuki (PSYNCIN' IN THE PaiN)
Date finds a corpse in Mizuki's somnium. She looks like Iris.
Date investigates the ringtone in Mizuki's somnium, heading to Bloom Park.
2019/11/03
Date finds out the phone he found at bloom park belongs to Shoko Nadami.
Renju got into a car accident the day before, and escaped the hospital before Date could talk to him.
Date finds out that the caller of Shoko's phone was So Sejima.
Date goes to talk to So, but he denies having information
Date goes to the Okiura Fishery Cold Storage Warehouse
Date sees So leaving the warehouse, and finds the body of the girl once he goes inside.
Aiba's battery died during this. so no record of the body discovery exists.
So Sejima is brought to ABIS for questioning
Date psyncs with So (PSYNCIN' IN THE VILLaiN)
Date saves Iris in somnium.
Date gets a call from csi, they couldn't find the body.
2019/11/04
Date believes the body was missing because he saved Iris in somnium
Aiba tells Date that So's secretary was in contact with #89
Date attempts to interrogate #89, but he escapes with Renju.
Date takes Iris to golden yokocho, but they get attacked by armed men
Iris claims it was a secret society, to confirm it, Date takes her to ABIS.
Date psyncs with Iris (PSYNCIN' IN THE MaiN 1)
2019/11/05
Date doesn't believe Iris after the psync
Date takes Iris to Matsushita Diner
Date goes to the Sagan residence, there, he learns Iris has a brain tumor
Iris runs off, she's gone missing.
Date looks for Iris and finds the Corpse in the warehouse again.
Aiba tells Date about Manaka Iwai, and how the corpse is not Iris.
Date interrogates Hitomi about Manaka
Date psyncs with Hitomi (PSYNCIN' IN THE MOUNTaiN)
Hitomi confesses everything about Manaka.
Hitomi tells Date about a call she got, threatening Iris.
Date and Hitomi head to the Abandoned Chemical Plant
Date goes ahead of Hitomi, and is knocked out by #89.
2019/11/06
Renju Okiura (Rohan Kumakura) is Found.
Saito psyncs with Date (PSYNCIN' IN THE CHaiN)
Date and Saito (In Falco's body) swap bodies. Saito and Date are now in their original bodies.
Moma busts in through the roof and attacks Saito. Saito runs off.
Saito is found holding Iris at gunpoint, but Mizuki ALSO busts in through the window and successfully
ambushes Saito. Saito runs off.
After finding Saito holding Hitomi hostage, Aiba chooses to self-destruct in his skull, killing both her and Saito.
2019/11/01
Iris is in the hospital for about three months
2020/02/06
Ai: The Somnium Files epilogue
Date gets Aiba back. She reveals herself to him at the end of everything.
2020/02/0X
Date dreams of being chased by Saito's bodyguards
Iris is kidnapped and force to escape the ancient civillization
Iris contacts Date, asking him to assist her escape
Date goes around looking for information and finds a pod at the cold storage warehouse. It has a note that reads "Psync me"
Date psyncs with the pod (Decadent Kneel)
Iris calls Date to ask for his help escaping the Cursed Bath House. Ota shows up too.
Date goes around and investigates some more
Date psyncs with the pod again (Destructive Knowledge)
Turns out Pewter was in the pod, this entire thing was so Boss could get Pewter back on the job.
Iris and Ota call Date to ask for his help escaping the Invitation to an Otherworld. Now, Moma is here.
Date investigates some more.
Date talks to Mizuki about her setting up the Third Eye Game. Mizuki was contacted by someone called "Asahi" to help with the escape room she was building for Iris. She knows nothing about the Third Eye game.
Date heads to the train station where Iris is at
Date, Ota, and Moma are tasked with escaping the Non-Existent Train Station
Date questions Hina after finding her at Ikume Shrine
Date psyncs with the pod one last time (Distortional Knighthood)
Date and Hina go to like stop Akemi or something because Iris is trapped in the pod at bloom park
That happpens. And, um, Date finally sleeps.
Le End.
2020/02/10
The Left half of Jin Furue's body is found at Studio Dvaita during a broadcast Ryuki was participating in
The QR video is discovered
2020/02/11
Ryuki psyncs with Chikara (Neferious Institute)
It's revealed that naix made Bats490
Ryuki finds out that Bats490 has nothing to do with the QR video
Chikara's right half is found"
2020/02/12
Chikara's left half is found
Bibi finds a note at Yoyagi park, it's a challenge to find three baloons
Bibi finds out Ryuki shot at a civilian during the night.
Bibi psyncs with Gen (Necessary Intervention)
2020/02/13
Ryuki is tasked with solving the case in 3 days if he wants to avoid getting demoted
Ryuki runs into Komeji at Horadori Institute
Ryuki psyncs with Komeji (Need Info)
Komeji's right half is found
Shoma runs off, Ryuki finds him at Misetan on the ferris wheel.
2020/02/14
Komeji's left half is found
Kizuna goes missing
Bibi looks for Kizuna, tracking her phones GPS to the chemical plant
Ryuki shoots Bibi with a stun bullet
Bibi wink psyncs with Ryuki, revealing that he's working with Tearer
Date shows up, Ryuki runs out the window.
Date uses traquilizer bullets to put Tearer to sleep
Bibi psyncs with Tearer (Nonentity Incognito)
Date shoots Tearer's mask, revealing the left half of his face
2020/02/15
Ryuki psyncs with Iris (Nemesis Identified)
It is revealed that Tearer is So Sejima's son...lol.
Kizuna is found at the execution chamber
Tearer blows up the cathedral
Mizuki looses her left eye, Kizuna's spine is damaged. Everyone else is fine.
A rock falls on Date, he goes missing, and thus marks the end of Ryuki's story.
2026/02/10
The right half of Jin Furue's body (Actually Uru Somezuki(Tearer)) is found at the Stadium
Upon finding the body, a mysterious masked woman shoots at Mizuki.
Mizuki psyncs with Ryuki (New Investigation)
2026/02/11
Mizuki goes to Horadori institute for her investigation
Mizuki runs into the Masked Woman and Kizuna
Mizuki psyncs with Kizuna
Mizuki finds out she's adopted. And genetically modified. haah.
2026/02/12
Ryuki psyncs with Tokiko (Naixatlozs Intentions)
Ryuki learns about the Nirvana Trial
Tokiko's right half is found
2026/02/13
*This is the only time Gen is at Brahman in the present flowchart.*
Mizuki and Lien investiagate Horadori Institute
Mizuki and Lien find the slicer
Tokiko's left half is found
Bibi (currently the masked woman) and Mizuki talk
Mizuki psyncs with Bibi (Neurotic Inception)
Mizuki and Bibi find the test rocket at Misetan Amusement park (and Ryuki, starring at the ferris wheel.)
2026/02/14
Ryuki looks for Shoma on the ferris wheel, but he wasn't there.
Ryuki psyncs with Amame (Nearly Interesting)
Ryuki gets a call from Aiba, telling him that Kizuna is missing
2026/02/15
*Mama talks directly to the player, revealing the flowchart twist. this happens at the beginning of the chapter and has no connection to the events of this story.*
Bibi reveals everything about Horadori Institute, her, and Mizuki.
Heading to Brahman, Mizuki and Bibi find Date, Kizuna, and Lien.
Mizuki finds the right half of Uru Somezuki in the freezer. Lien had opened it earlier.
Mizuki, Bibi, and Date find Ryuki in the ruins of the Cathedral.
Mizuki psyncs with Amame (Nightmare Irreconcilable)
Mizuki figures out the location of the Nirvana Initiative
To stop the Nirvana Initiative, Mizuki, Date, Bibi, and Ryuki all go to the stadium to stop the rocket with TC-PERGE.
Ryuki is shot. #packwatch.
2026/02/22
Nirvana Intitiative epilogue.
Ryuki is okay, like Aiba, he reveals himself to Mizuki and Bibi at the end of everything.