Archive of Our Own

Recent works

• A sorcerers secret Journal by Katseni

  Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)  

  • Not Rated
  • Creator Chose Not To Use Archive Warnings
  • M/M
  • Work in Progress

  10 Jun 2026

  Tags

  • Creator Chose Not To Use Archive Warnings
  • Kamishiro Rui/Tenma Tsukasa
  • Kamishiro Rui
  • Tenma Tsukasa
  • sorcevalier
  • Diary/Journal
  • Sorcerer Kamishiro Rui
  • Knight Tenma Tsukasa
  • Sorcerer Kamishiro Rui/Knight Tenma Tsukasa
  • DIARYVERSE (Project Sekai)
  • but its seperate
  • Other Additional Tags to Be Added

  Summary

  Sorcerer Rui has problems
  so he starts writing them in a journal

  aka, another diary fic, except this one is gonna be sorcerer Rui because im obsessed with Sorcevalier

  Language:

  English

  Words:

  728

  Chapters:

  3/?

  Comments:

  5

  Kudos:

  10

  Bookmarks:

  1

  Hits:

  92

• Rui's diary :3 by Katseni

  Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)  

  • Not Rated
  • No Archive Warnings Apply
  • M/M
  • Work in Progress

  10 Jun 2026

  Tags

  • No Archive Warnings Apply
  • Kamishiro Rui/Tenma Tsukasa
  • Kamishiro Rui
  • Tenma Tsukasa
  • Mentioned Kusanagi Nene
  • Trans Male Kamishiro Rui
  • hes not out to anyone yet
  • slow burn?
  • Autistic Kamishiro Rui
  • Author Projecting onto Kamishiro Rui
  • Mentioned Ootori Emu
  • no beta we die like my sleep schedule
  • Mentioned Akiyama Mizuki
  • She/Her Pronouns for Akiyama Mizuki
  • Mentioned Shinonome Akito
  • Genderfluid Ootori Emu
  • Demi-girl Kusanagi Nene
  • Trans Male Tenma Tsukasa
  • RUI IS NOW OUT TO WONDERSHOW :D
  • Self-Harm
  • its not there a lot but like
  • yeah - Freeform
  • Kamishiro Rui Needs a Hug
  • Diary/Journal
  • DIARYVERSE (Project Sekai)

  Summary

  uuhmhm rui's diary thats it :3 updates daily maybe twice a day if i feel like it

  i heavily project onto rui and i will not apologize. if you dont like it then dont read it :3

  Series

  • Part 1 of If the words won't come out, I'll write them down instead

  Language:

  English

  Words:

  1,966

  Chapters:

  62/?

  Comments:

  56

  Kudos:

  122

  Bookmarks:

  6

  Hits:

  1,776

• Promise? by Katseni

  Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)  

  • Not Rated
  • Creator Chose Not To Use Archive Warnings, No Archive Warnings Apply
  • M/M
  • Complete Work

  18 May 2026

  Tags

  • Creator Chose Not To Use Archive Warnings
  • No Archive Warnings Apply
  • Kamishiro Rui/Tenma Tsukasa
  • Kamishiro Rui
  • Tenma Tsukasa
  • Tenma Saki
  • Other Background Characters - Freeform
  • Trans Male Kamishiro Rui
  • Trans Male Tenma Tsukasa
  • its not important
  • i just love my t4t ruikasa
  • Confessions
  • Boys Kissing
  • they are so gay oh my gods
  • Kamishiro Rui Has Abandonment Issues
  • this will be explored more in a different fic
  • you know the drill guys
  • Author Projecting onto Kamishiro Rui
  • i love gay people
  • They cuddle at the end
  • Mentioned Akitoya - Freeform
  • Possibly OOC
  • i still dont know how to write tsukasa very well
  • no beta we die like my sanity.

  Summary

  well, the party is over.
  time for rui to do what he had been dreading for over a week now

  Series

  • Part 3 of If the words won't come out, I'll write them down instead

  Language:

  English

  Words:

  2,005

  Chapters:

  1/1

  Comments:

  1

  Kudos:

  28

  Bookmarks:

  1

  Hits:

  251

• TSUKASA BIRTHDAY SURPRISE!! by Katseni

  Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)  

  • Not Rated
  • Creator Chose Not To Use Archive Warnings
  • M/M
  • Complete Work

  18 May 2026

  Tags

  • Creator Chose Not To Use Archive Warnings
  • Kamishiro Rui/Tenma Tsukasa
  • Minor or Background Relationship(s)
  • Kamishiro Rui
  • Tenma Tsukasa
  • Akiyama Mizuki
  • Shinonome Ena
  • Shinonome Akito
  • Aoyagi Touya
  • Shiraishi An
  • Azusawa Kohane
  • Hanasato Minori
  • Kiritani Haruka
  • Hinomori Shizuku
  • Momoi Airi
  • Tenma Saki
  • Hoshino Ichika (Project SEKAI)
  • Mochizuki Honami
  • Hinomori Shiho
  • chatfic
  • implied akikasa if you squint REALLY hard
  • Trans Male Kamishiro Rui
  • Trans Male Tenma Tsukasa
  • Trans Male Shinonome Akito
  • Trans Female Akiyama Mizuki
  • Genderfluid Ootori Emu
  • Everyone Is Gay
  • LITERALLY
  • Minor Azusawa Kohane/Shiraishi An
  • Rui is pathetic
  • Aoyagi Touya is a Tenma
  • Kind Of
  • he lives in the tenma household
  • More tags to be added
  • Minor Aoyagi Touya/Shinonome Akito
  • No Beta we die like Rui's heterosexuality
  • as if he was ever straight tbh
  • underage drinking eventually
  • oopsies ?

  Summary

  chatfic where rui plans a party for tsukasa while being hopelessly in love with him!

  goes with my "Ruis diary" fic

   

  ignore how it said it was only gonna be 1 chapter before.....

  Series

  • Part 2 of If the words won't come out, I'll write them down instead

  Language:

  English

  Words:

  3,884

  Chapters:

  5/5

  Comments:

  7

  Kudos:

  30

  Bookmarks:

  3

  Hits:

  304

• Go to sleep already by Katseni

  Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)  

  • Not Rated
  • No Archive Warnings Apply
  • F/M
  • Complete Work

  22 Mar 2026

  Tags

  • No Archive Warnings Apply
  • Kamishiro Rui/Tenma Tsukasa
  • Kamishiro Rui
  • Tenma Tsukasa
  • Mentioned Kusanagi Nene
  • Mentioned Ootori Emu
  • theyre literally only there for 2 lines
  • Rui is sick
  • Sickfic
  • Author is tired
  • i got shit sleep last night
  • i wrote half of this in the morning and half of it in the afternoon
  • Short as hell
  • Fluff
  • i still dont know how to tag (how shocking)

  Summary

  Rui is sick and tsukasa forces him to stay home and rest :3

  thats it

  Language:

  English

  Words:

  759

  Chapters:

  1/1

  Comments:

  1

  Kudos:

  20

  Hits:

  238