Ruikasa Week 2025
This is the collection for this year’s Ruikasa week! Open Dec 12-18! Prompts are in introduction~
(Closed, Moderated)
Random works
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ruikasa week 2025 by roeboat
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
18 Dec 2025
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Summary
all of my ruikasa fics from ruikasa week 2025! will update daily dec 12-18
note - i sadly failed to complete the last 2 prompts in time 💔
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transcending dreams by nons7llyguy
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
19 Dec 2025
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Rui rarely recalls her dreams but lately she's been waking up and vividly remembering what her mind conjures up while sleeping. This would be normal if it were not for the fact she was dreaming of being able to call Tsukasa hers and imaging themselves in different stories together.
Tsukasa has been having new dreams too, where Rui kisses her and it feels so natural. Luki hasn't been sleeping much lately , which tips Tsukasa off that her dreams of Rui may be part of a bigger issue.
Will they ever find out that this is a common occurrence for the both of them? Or will they continue to indulge in their dreams of their crushes reciprocating their feelings without ever speaking in reality?
or rather; Ruikasa Week 2025 but make it yuri!
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i want to keep walking, with our steps matching by telecasterbboy
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
12 Dec 2025
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Rui calms himself, taking a breath in before speaking. “You're worrying me, Tsukasa-kun. You're acting recklessly, with little concern for your health. As your friend foremost, I need to know why, but additionally, as your director—”
“That's the problem, Rui—!” he shouts. “You're my director!”
The silence that follows is charged with intensity. He's caught off guard at his brashness, and can only force out a single word, “... Elaborate?”
Tsukasa has been acting weird recently. Rui wants to understand why.
🎈🌟 Week Day 1: Jealousy
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do it tenfold by miyuzhl
Fandoms: プロジェクトセカイ カラフルステージ！| Project SEKAI COLORFUL STAGE! (Video Game)
12 Dec 2025
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A sharp pain stings Tsukasa's heart, like a shot of poison, as he watches Emu rub her face against Rui's shoulder, jumping up and down excitedly like a child and tightening her hold on him. It makes him sick. His chest tightens and a bitter, crawling taste finds its way to his tongue as it's rendered useless. He can't find the words, he can't find a response. All he can do is watch hopelessly as his friend butters up to his boyfriend, getting touchier every second.
Calm down, Tsukasa. It's just Emu. It's just the way she is. She's not at fault here.
But yet, his skin feels like it's slowly being stabbed by fifty needles tipped with poison, a poison that slithers all over his body and eventually seeps into his heart. It feels like cardiac arrest, the way it stops beating, but it resumes with a fervent so intense he could hear the solid thumps echo in his ears.
He shouldn’t feel this way.
Fuck, he has to stop.
Tsukasa gets jealous when Emu hugs Rui.
Written for Ruikasa week 2025 Day 1: Jealousy.
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Gifts For Me, A Treat For You by Convexity
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 Dec 2025
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On another of their routine meet ups, Rui brings gifts as he usually does. Trinkets, accessories and jewellery he often finds who knows where in the ocean. Tsukasa appreciates every one, and even allows Rui a treat of his own this time.
Ruikasa Week Day 4 - Love Language