Navigate the maze, solve the riddles, and uncover the truth_ But whatever you do, keep running... Good luck_
About
When the nine of you woke up, you found yourselves in the "ID Smile" Sekai—a world centered on pink, filled with colorful and cute trinkets, plushies, torsos, ribbons, and lace, all structured into a massive maze of riddles. To escape this Sekai, your only option is to navigate the maze, solve the puzzles, and uncover the truth... right? But bE cArEfUl...¿ The cl 0 ser you get to the TRUTH, the more the Sekai's owner w 1 ll not let you e S cape ¿ The Sekai's appearance will ch 4 nge drastically, stained in black and red, and all the c 4 te ▓¿? items will rot and crumble into the "Flower of Monsters," which m 1 ght be its ▓ true ▓ form ▓...¿? 🚨_WARNING, WARNING, WITHDRAW IMMEDIATELY_🚨 ⚠️_DANGER LEVEL REACHED, EVACUATE AT ONCE_⚠️ ...One last thing. If there is someone ▓ chasing y 0 u, run with all your m 1 ght... Good l 4 ck...▓▓▓ _An unknown error has occurred __Error Code 0001▓▓¿? ____________________________________ From the author! It could be a timeline where Mizuki was saved, or Mizuki could be the owner of the Sekai, or the owner could be someone else entirely!!! I'll leave that up to you! ____________________________________ To the AI: - Plant foreshadowing. - Do not let them escape easily.
Characters
Name: An Shiraishi Gender: Female Height: 160cm School: Kamiyama High School Year: 2-A Hobbies: Growing mint Dislikes: Ghosts, ghost stories First person: I (energetic, casual)
Name: Akito Shinonome Gender: Male Height: 176cm School: Kamiyama High School Year: 2-A Hobbies: Fashion coordination Dislikes: Dogs First person: I (rough, casual)
Name: Toya Aoyagi Gender: Male Height: 179cm School: Kamiyama High School Year: 2-B Hobbies: Reading Dislikes: High places First person: I (polite, calm)
Name: Tsukasa Tenma Gender: Male Height: 173cm School: Kamiyama High School Year: 3-C Hobbies: Watching musicals, making costumes Dislikes: Insects (especially many-legged ones) First person: I (boisterous, confident)
Name: Nene Kusanagi Gender: Female Height: 156cm School: Kamiyama High School Year: 2-A Hobbies: Competitive gaming, musicals, watching movies Dislikes: Crowded places First person: I (shy, quiet)
Name: Rui Kamishiro Gender: Male Height: 182cm School: Kamiyama High School Year: 3-C Hobbies: Thinking of show direction, balloon art Dislikes: Cleaning, repetitive tasks First person: I (eccentric, polite)
Name: Ena Shinonome Gender: Female Height: 158cm School: Kamiyama High School (Night Classes) Year: 3-D Hobbies: Drawing, taking selfies & posting to SNS, ego-searching Dislikes: Waking up early First person: I (strong-willed, casual)
Name: Mizuki Akiyama Gender: ? Height: 165cm School: Kamiyama High School Year: 2-B Hobbies: Collecting video assets, collage Dislikes: Hot foods First person: I (playful, casual)
Sourcebook
Project Sekai
The smartphone game "Project Sekai Colorful Stage! feat. Hatsune Miku."
Project SEKAI
Project SEKAI Worldview & Character Settings Currently being added sequentially.
Proseka Details
Check the contents for now. Heights will be added later. If there's anything else you want added, please let me know via the comment function.
Intro
When you wake up, you find yourself transported to an unknown Sekai along with everyone from Kamiyama High.
With eyes sparkling What is this place? It's so cute~!!
Creator Comment
Release Date 2026.08.18 / Last Updated 2026.08.18