1 - 20 of 31 Works in Original Unit (Project SEKAI)
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KUDATOMO Main Story by deadbreadrunning
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
07 Sep 2025
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Summary
this is gonna look a whole lot different from most of my works but if you wanna read about (one of) my fan unit(s) this is the place!
KUDATOMO (果友) - four talented vtubers pioneering the medium hand in hand, doing their best to turn their backs on their pasts and bury their secrets
members:
→ hinako riyona (overachiever with rich tech bro uncle; childhood friend of emu!)
→ yukimura kiku (trying her hardest to care for her little cousin alone— needs a lucky break)
→ hinomori saba (fan sister for shizuku and shiho. never felt like enough compared to them)
→ rinzaki yae (writer. also horrifically insecure that everyone hates her) -
Future Hope | Main Story by ritsu_veskai
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
06 Sep 2025
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Summary
[ Determined to let the whole world listen to their music, Akiko and two of her friends have made an online music account under the name “Future Hope”. Things were going smoothly with the group until an old friend of Akiko shows up and keeps on persisting that he should join the group. ]
cross-posted on watpad and quotev
Series
- Part 1 of future hope
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lost between here and there by gambling_tater_tot for deadbreadrunning
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
02 Sep 2025
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But she wouldn't ever be able to be better. She would try her hardest, but so would the others. And Saba would never, ever, come out in first. All she could do was try her best to keep treading water.
Sicktember Day 1: “It’s the middle of the night, why are you up?”
Series
- Part 2 of Sicktember 2025: the potato edition
- Part 2 of potato‘s sickfics
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JANUS obbligato - Main Story by twoheartboulevard for Sekaiverse
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
31 Aug 2025
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Summary
「A versatile music group dedicated to unveiling their audience’s true self, created in an attempt to rebuild a bond that never was.」
Genji Ose, Chiyeko Kuroki, Naoya Igarashi and Mine Nagasawa,
there isn’t much that connects them, at least not at first glance.
But maybe that’s exactly what makes them alike.A group standing for self-expression - but is the face they show to the world truly theirs?
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Sound Asleep In SEKAI by acidwash
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
14 Aug 2025
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Summary
Its been a month since Libretto has formed, and Eden and Hana are practicing in the Library SEKAI with KAITO. After that, Eden decides to head home, but Hana decides to stay.
Series
- Part 10 of Libretto
- Language:
- English
- Words:
- 791
- Chapters:
- 1/1
- Hits:
- 13
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Butterfly Madness - Events & Fragment stories. by thevexinator
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
05 Aug 2025
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Summary
Events & Fragment stories for Butterfly Madness.
Fragment stories serve for additional backstory context.
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La Iconoclisma - Main Story by buggygutz for sekaiverse
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game), Original Work, Vocaloid
02 Aug 2025
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Summary
In the Cathedral SEKAI, there exists no line between saint and sinner.
None are delivered from sin.
God is not watching.[The tale of an eclectic visual kei group, brought together by one girl’s livestream— and their mutual desire to break free from the guilt that plagues them.]
Series
- Part 1 of La Iconoclisma
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VIVID VOLTAGE| IronThread SMUT by StackOfPancakes
Fandoms: Original Work, プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
21 Jul 2025
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- Language:
- English
- Words:
- 777
- Chapters:
- 1/1
- Hits:
- 18
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UNBOUNDED by certified_racoon
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
03 Jul 2025
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Summary
The Sirius who blinds others with her light, yet hides her collapsing core.
The Antares who burns with passion, fearing her fire will consume those she loves.
The Betelgeuse who shimmers in the night, unaware of the brilliance he leaves behind.
The Castor who spins endlessly, torn between two reflections of self.When they accept the hand that tries to change them, the music they once loved begins to fade.
Series
- Part 1 of UNBOUNDED
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Hard_line-Project Sekai oc unit by Dan___100004
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game), Hard-line, Hard_line
27 Jun 2025
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Summary
An imperfect idol unit defying expectations, singing truths no one else will.
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Happy Birthday Rui!!! 2025 by acidwash
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
24 Jun 2025
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Summary
Rui's birthday is coming up, and Eden Doucet losses his fucking marbles over something
Series
- Part 8 of Libretto
- Language:
- English
- Words:
- 2,062
- Chapters:
- 1/1
- Kudos:
- 1
- Hits:
- 14
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FEELING THE OVERLOAD!!! by sussyhilda
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
09 Jun 2025
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Summary
A new music group, feel overload, have been dabbling in making alternative songs whenever they can with the help of VOCALOIDs; what better way to make them known than by a super cool recording made by none other than Akiyama Mizuki themselves?!
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aka, four girls and a mizuki just going cr詠zy for two thousand or so words
Series
- Part 1 of "feel overload" and their antics
- Language:
- English
- Words:
- 2,260
- Chapters:
- 1/1
- Kudos:
- 3
- Hits:
- 42
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after school ice cream by Mimiso_Soup (Cosmos_Cat)
Fandoms: Original Work, プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
02 Jun 2025
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Summary
Miyuki's in class when she gets a message from Hibari.
- Language:
- English
- Words:
- 1,073
- Chapters:
- 1/1
- Kudos:
- 1
- Hits:
- 5
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attempts at claw machines and friendships by Mimiso_Soup (Cosmos_Cat) for doremy
Fandoms: Original Work, プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
27 May 2025
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Summary
Kotoha and Yoko visit the arcade together in hopes of getting to know one another better. They leave with two prizes and newfound feelings.
Series
- Part 1 of Shizuoka Project Date Series
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Hatsune Miku ‒ Colorful Stage ~ Side Story Main/Key Story Collection by PastrySpider
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game), Risk of Rain (Video Games)
23 Apr 2025
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Summary
A collection of Main Stories and Side Stories for my Original Character Units for Project SEKAI.
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SignaliS, often abbreviated as SS, is a wandering music group that makes music in an attempt to find their distant selves. This group is a collaboration between Risk of Rain & Project SEKAI Colorful Stage.
???, often abbreviated as ???, ???, and ???, is both a ??? and music group that aims to prove to Japan what ??? truly means.
???, often abbreviated as ???, ???, and ???, is a group of singers and songwriters that perform to teach others about ??? and ???. This group is a collaboration between ??? & Project SEKAI Colorful Stage.
???, often abbreviated as ???, or ???, is a group of singers and ??? who plan on bringing ??? to the world, to make it a world where ??? and ??? live in harmony. This group is a collaboration between ??? & Project SEKAI Colorful Stage.
???, often abbreviated as ???, ???, or ???, is a group of singers who use their music to share ???, alongside the feelings of their sweet ??? and their bitter ??? that come with.
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Butterfly Madness - Main Story by thevexinator
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game), Original Work
20 Apr 2025
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Summary
A group that exists to preserve the past, celebrate the present, and welcome the future.
[Author's note: hiiiii!!!! my name is vex, and i'm finally bringing my year-old project onto this website!!! shoutout to my sekaiverse oomfs <3]
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HABROMANIA. by IdiotNeru
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game), Vocaloid
07 Apr 2025
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Summary
HABROMANIA, a band of kids who have lost their way, walking on a path of self discovery together. With a talent for acting, they take to the stage, hoping to give people the same joy they experience when performing as well.
After being told to act “normal” their whole life, hiding who they were for the sake of others, it’s all they know how to do. Despite this, acting and creating is their passion, and they don’t view it as something that’s distressing. They view it as something necessary to survive and be able to live peacefully. They might find themselves longing to know what it’s like to be perceived as normal without having to act, but they have a job rn so they don’t really gaf /j /ref
Kotori, Atsuko, Maddison, Ketsueki.. What’ll they do? What happens after the stress starts to get overbearing? What happens when the tension that’s been boiling up finally reaches its peak? Conflict after conflict, break after break, challenge after challenge- how are they meant to deal with it all? Music might not be their only “savior” now.
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Hopeless Theatre [MAIN STORY] by AoixWriting
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game), Original Work
06 Apr 2025
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Summary
„At the Midnight Excitement, guests gather. Not only to eat, but also to watch the mysterious show...Suddenly, four masked teenagers appear on the Scene of Truth, already gaining applause by just standing. Will they be able to share hope with their performances, if they don't have any themself?”
After being a part of the Drama Club for some time already, Shin Kusanagi wants to express his feelings through acting even more. His childhood friend, Aiko Matsumoto, felt exactly the same way. After they found out that new restaurant called "Midnight Excitement" is looking for a group of at least four to perform on their stage, both Shin and Aiko decide to look for two more people in their school. They finally meet Emi Shimizu and Satoshi Ito, who agree to join.
Series
- Part 1 of Hopeless Theatre [STORYLINE]
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NEO Rhapsody - MAIN STORY by NesaiU for Sekaiverse
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game), Original Work
07 Mar 2025
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Summary
A rebellious secret group united by the purpose of liberating oneself from the shackles and let the rage ignite the fire of hope
Series
- Part 1 of NEO Rhapsody
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starcrossed ★ strings by nomeshino
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
02 Mar 2025
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Summary
"One tale of how destiny fated that four girls were bound to face countless hardships . Why not come together and overcome this curse?"
A year later after a big misunderstanding and fight with her dearest best friend, Masuyo Asano is now living the life of a loner at school, having forgotten why and how that fight happened — that's until two girls came to help, and now she may have a chance to regain her lost best friend, alongside those two.
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Starcrossed ★ Strings is a fan unit for the game Project Sekai: Colorful Stage feat. Hatsune Miku.
It takes place in another school, in the district of Shizuoka — it's a new perspective on the concept of Virtual Singers guarding groups feelings!
Story, designs, character creation and sprites — Fujitta
Co-writer, beta reader, designs and character creation — Martin
Second beta reader — TestyAll rights go to Sega and Colorful Palette
Series
- Part 1 of starcrossed ★ strings