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   Tsukasaverse by AkumuIsSleepy

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

   • General Audiences
   • No Archive Warnings Apply
   • Gen, M/M
   • Work in Progress

   18 Aug 2026

   Tags

   • No Archive Warnings Apply
   • Kamishiro Rui/Tenma Tsukasa
   • Kamishiro Rui & Kusanagi Nene & Ootori Emu & Tenma Tsukasa
   • Hinomori Shiho & Hoshino Ichika & Mochizuki Honami & Tenma Saki
   • Aoyagi Touya & Shinonome Akito
   • Hatsune Miku & Kagamine Len & Kagamine Rin & Kaito & Megurine Luka & Meiko
   • Tenma Tsukasa
   • Tenma Saki
   • Kamishiro Rui
   • Kusanagi Nene
   • Ootori Emu
   • Aoyagi Touya
   • Akiyama Mizuki
   • Asahina Mafuyu
   • Kagamine Rin
   • Megurine Luka
   • Kagamine Len
   • Hatsune Miku
   • Hinomori Shiho
   • Hoshino Ichika (Project SEKAI)
   • Mochizuki Honami
   • Shinonome Akito
   • Tenma Saki and Tsukasa's Parents
   • Meiko (Vocaloid)
   • Kaito (Vocaloid)
   • Yoisaki Kanade
   • Shinonome Ena
   • Angst
   • Reaction
   • Depression
   • Original SEKAI (Project SEKAI)
   • Angst and Feels
   • Tenma Tsukasa Needs a Hug
   • Tenma Tsukasa-centric
   • Tenma Tsukasa Angst
   • Tenma Tsukasa is Bad at Feelings
   • Why was I too lazy to make a character to own the sekai
   • Im just writing this bc I need more tsukasa reaction fics
   • Reader-Interactive
   • your comments matter
   • Cross-Posted on Wattpad
   • help these poor souls bc Miku wants this to HURT
   • Rin is over Miku's crap
   • Lore outside of the main reaction
   • no beta we die like Tsukasa's happiness
   • Character Development
   • everyone is feeling something about this
   • Akito wants to escape
   • pjsk
   • project sekai - Freeform
   • React
   • AkiToya if you look
   • Did not plan for Leonii poly
   • I just hc them as really close besties that aren’t afraid to hold onto each other
   • MizuMafu are also in that boat
   • I just hc them as great friends :3
   • tsukasaverse
   • Crazy vocaloid lore
   • Original Sekai
   • Sekai lore
   • Plot Twists
   • Chapter count is subject to change…. A lot
   • Shizuku joins the battle… for an event
   • Nenemu is endgame but not in this book
   • Emukasa didn’t make it unfortunately
   • Unrequited Love
   • but for whom?
   • Kanade joins the battle... for an event
   • Ena joins the battle... for an event
   • She/Her and They/Them Pronouns for Akiyama Mizuki
   • Trans Female Akiyama Mizuki
   • Good Sibling Tenma Saki
   • Hurt/Comfort
   • Experience Sekai AU

   Summary

   Toya, WxS, and a few others react to Tsukasa Tenma's pov!

   Details:

   When a little over half the pjsk cast find themselves in a strange Sekai resembling an old timey theater, chaos ensues. With a new Miku taking the reins and concealing their only escape, they find themselves trapped and forced to watch the sorrowful depths of their one and only future star. Behind the scenes, a mystery lies; who gathered them all? Why? And most of all, can they somehow fix Tsukasa with the knowledge they shouldn't even know? Or does he even need fixing?

    

   This is an interactive book! Your comments matter!!

   Language:

   English

   Words:

   236,536

   Chapters:

   62/80

   Comments:

   2,234

   Kudos:

   950

   Bookmarks:

   100

   Hits:

   34,249

   Bookmarked by MISKAXXQ

   28 Jan 2026