Rat's Secret Relationship Fics
relationship reveals, secret relationships, and silly fluff. I try not to include super angsty ones but sometimes it just happens
(Closed, Unmoderated)
Recent bookmarks
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Echos of the Heart by OmegaMuffin
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
14 Feb 2026
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Summary
Giyuu and Kyoujurou are a few months into their relationship, but have decided to keep it a secret from nearly everyone else. That is, until Tengen notices something very strange between the two of them at the latest Hashira meeting. He’s determined to find out the cause.
Or Tengen watches how disgustingly fluffy and sweet rengiyuu are with each other. Yknow, the usual.
Happy Valentine’s Day! ❤️💙
Series
- Part 3 of A/B/O Chronicles of Water and Flame
Bookmarked by RealRat_Man
15 Feb 2026
Bookmarker's Collections:
Bookmarker's Notes
kisses you passionately
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obsidian by elkysakura
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
26 Oct 2025
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Summary
The first time Rengoku Kyojuro, the flame hashira, sought out Tomioka Giyuu, the water hashira, it was not out of duty, but curiosity.
What begins as quiet companionship between the two becomes something deeper and tender.
But even flames burn out, and Giyuu must learn to live on.
Yet love, like fire, never truly dies. It simply finds its way back home.
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Hidden in Plain Sight by SAPPHICSANGRE
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
06 Jan 2026
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Summary
Sanemi enjoys nights out with his friends and needs a drink for what he just saw.
Series
- Part 5 of The Hashira Finding Out About RenGiyuu
Bookmarked by RealRat_Man
11 Feb 2026
Bookmarker's Collections:
Bookmarker's Notes
please they're so silly
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Dinner with Friends by SAPPHICSANGRE
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
05 Dec 2025
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Summary
Obanai and Mitsuri have Rengoku to thank for pushing them to be together. So, when Rengoku tells them he has news he wants to share over dinner they are more than happy to have him over.
Series
- Part 4 of The Hashira Finding Out About RenGiyuu
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The Only Thing Tougher than Training Is News You Don't Want to Hear by SAPPHICSANGRE
Fandoms: 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Anime), 鬼滅の刃 | Demon Slayer: Kimetsu no Yaiba (Manga)
22 Nov 2025
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Summary
Gyomei and Rengoku are taking a break after a training session. Gyomei becomes suspicious when a certain Hashira keeps getting brought up.
Series
- Part 3 of The Hashira Finding Out About RenGiyuu