1 - 20 of 434 Works in Bottom Tenma Tsukasa
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Prosekai x Spooktober!! by Spungeey
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 Oct 2025
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Summary
My first promptober yay (im terrified.)
Welcome to October in the project sekai world :)
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A Kasaverse Lascivious Collection by Tzuchini
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 Oct 2025
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Summary
In which I give every version of Tsukasa a name, pair them up like they're Sans Undertale, and write something for Kinktober 2025.
Series
- Part 5 of Bottomkasa Anthology
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The fic where Rui's kidneys are working overtime by Anonymous
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 Oct 2025
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Summary
A chair scratching against the linoleum tiles broke him out of his stupor, causing the blond to quickly snap his head back. Rui met Tsukasa's gaze with a knowing smirk before excusing himself to the bathroom.
Tsukasa snapped his head back, eyes glued to the paper on his desk. He gripped the front of his pants, trying to will away his nerves. It was one thing to do this in the privacy of Rui's garage, hell, even on a secluded side street. But at school? Where everyone knew him? Where anyone could walk in...
His phone buzzed in his pocket, breaking his train of thought. Tsukasa discretely checked the notification from his home screen.
[New Message]
>Rui :3Meet me in the bathroom. ♡
Series
- Part 2 of 🦐 anon's silly works
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"Was It Worth the Shot, Shira'?" by austhheart
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 Oct 2025
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"let's get started, Shira'." the blonde starts, holding out his fist for a quick game of rock-paper-scissors. the store-owner sighs, giving in to the older male.
immediately after losing, the shorter male grabs the bottle, taking the shot glass and filling it up. he soon brings it to the younger male's view, the office worker gulping it in one go. "see? not so hard, right?"
the sharp liquid trails down his throat, making him grimace on his seat, but hiding it under his hand on his face. he looks at the younger male, playing another game of rock-paper-scissors, now beating him. he watches as the man prepares a drink for himself, the well-composed librarian was having second thoughts about this; but still finishing the glass.
"now, let's start the real game!" the blonde exclaims, smiling smugly while doing so; too confident to think about the consequences, unaware of the mess he'll be later on.
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旅殿‖阴雨（微R） by LackOfHHHHeart
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 Oct 2025
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Summary
一个关于重逢的故事。
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an odd way to cope with your feelings! by Miss_DLV
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 Oct 2025
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Summary
Tsukasa's feelings towards Rui have been complicated as of late, unexpected blushing and strange reactions to Rui's praises. To top it all off, his last dream where he had woken up to an erection from something so simple as making out with Rui.
This wouldn't be a problem if he and Rui weren't close friends.
Little does Tsukasa know, even his sexual desires and frustrations will seep into the sekai and thus, those feelings too will be expressed some way.
Series
- Part 45 of MissPrivatesSecretCollection♡
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각인 by Myamyamya
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 Oct 2025
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🎈🌟
Shirato Rui(Ω)X Nakayama Tsukasa(α)
Based on play within a play, Rui4
짝이 되기 위해 전희를 하던 중, 나카야마가 습관적으로 후크를 풀려는 시도를 한다. 그의 처음이 자신이 아니라는 것에 시라토는 이성이 끊어지는데……
- Language:
- 한국어
- Words:
- 1,709
- Chapters:
- 1/1
- Kudos:
- 5
- Hits:
- 175
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Tsukasa-chan's girlfriend is way too hot (and that's a problem) by Kaafuh
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
27 Sep 2025
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Summary
Rui has a new project.
Tsukasa is jealous.Tsukasa-chan never thought anyone could make her feel insecure about her relationship. That is until the other company's partner, Asahi Genbu
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Fuck your feelings, you’ll be my pet by TsukasaStarLove (ruMeow)
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
27 Sep 2025
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Summary
Airi and Shizuku are determined to get their sweet revenge on Tsukasa after he plays them both.
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silly bucket by Anonymous
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
26 Sep 2025
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Summary
The weirdo wombo combo have a rather adventurous sex life. When laying out what kinks and things they'd be interested in, it surprised Tsukasa how much they did have in common. Even down to not really having a position preference. So to make things easier (or more complicated depending on your view of things), they devised a 'simple' strategy for their scenes. They had written out slips of paper with tasks they had to do on them and put them into a bucket. Whatever someone pulled they had to do that task or face a punishment. The slips of paper varied like 'finger yourself while the other watches' or 'you can't cum for the rest of the evening'. Fun stuff!
Series
- Part 1 of 🦐 anon's silly works
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7 Minutes in heaven by Miss_DLV
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
26 Sep 2025
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“Well, at least we can just hangout in the bathroom until— Rui—!?”
“That would be cheating though, you don't want to get scolded by Emu-kun, do you?”
Series
- Part 44 of MissPrivatesSecretCollection♡
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" ★I'm Alone rn, come over?★ " by Anonymous
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
25 Sep 2025
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Tsukasa's left alone in the Tenma Household! Saki's having a sleepover at Leo/need, his parents are away on a business trip. Luckily, his balcony windows are soundproof and the walls aren't paper thin so they cant be heard by the neighbors!
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Your touch is my desire by Ciakasa
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 Sep 2025
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Both the knight and sorcerer hadn’t been intimate with each other in a while, making them both pretty pent up. They never had much time to togheter anymore since both of them had their duties in the kingdom.
One day though, they were both free for the day, and obviously, they got down to business.
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Aka, Tsukasa gets clapped by Rui and his tentacles. Sometimes he’s really lucky to have a sorcerer that’s good with magic as his boyfriend.
Series
- Part 2 of Cia’s sorcevalier fics ╰(*´︶`*)╯♡
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ill change this when i finally upload the fic by orphan_account
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 Sep 2025
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wip
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类司R‖酒精易挥发 by LackOfHHHHeart
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
21 Sep 2025
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一次庆功聚会后，醉酒的类和司回到了家中……
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Needy by Miss_DLV
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
21 Sep 2025
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Summary
“I've been wanting sex for awhile now, to be honest. Masturbation doesn't really work well, I don't feel anything unless I'm with you. You feel the same, right?"
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Tsukasa and Rui haven't had sex in a while. With Tsukasa being a popular idol and Rui taking care of private business, their schedules often conflict, never having time to settle down like that. Although tonight is a little bit different...Series
- Part 43 of MissPrivatesSecretCollection♡
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Camping trip at 3am gone wrong! (who could've guessed?) by Miss_DLV
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
11 Sep 2025
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Summary
Perhaps agreeing to an insane dare of spending the night in a forest all on his own was a terrible idea, after all, there are monsters out there who are horny and looking to breed!
Series
- Part 42 of MissPrivatesSecretCollection♡
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In the depth of hell (but you're the devils) by raveralent
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
10 Sep 2025
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Tsukasa, Emu, Nene, and Rui are the four elite members of the Otori clan, a notorious mafia organization. Tsukasa loves nothing more than doing heists with his fellow elites, but there’s a teeny bit problem—the three of them are too obsessed with him. But when a job went wrong and Tsukasa got captured by the leader of an enemy clan, maybe, just maybe, their obsession is the key to saving him.
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Rope of fate by yam1nab3
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 Sep 2025
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Summary
one rope, two people.
(reader is referred to as biden chan, i refuse to use y/n in the big 25)
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The Uwanted Help From An Angel by Yuee__12
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 Sep 2025
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Summary
Tsukasa, a bright angel from Heaven decided to come down and help Rui to become a better person because he obviously hasn't had a slight obsession from watching the human for quite some time! It's not like they are going to do anything freaky! (I swear they don't!)
But they also have their disagreements, and misunderstandings, almost dragging them apart filled with fear and regret. Will an angel and human actually get along?