15 Works in Nonbinary Seiya Kou
Listing Works
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Odango Confidential by bookishgirly
Fandoms: Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon, Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon (Anime & Manga)
08 Jan 2026
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Summary
Usagi Tsukino has a hopeless crush and a chronic case of clumsiness—until she meets Seiya Kou, the school's effortlessly cool, gender-fluid heartbreaker. What starts as teasing and "confidence lessons" turns into something dangerously real, as Usagi learns that growing up isn't about changing—it's about being seen. *AU*
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Some Girls Do by bookishgirly
Fandoms: Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon, Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon (Anime & Manga)
30 Dec 2025
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Summary
Seiya Kou has always been the kind of person who doesn't fit neatly into boxes. Loud, charming, a little too confident for her own good—and completely gone for her best friend.
Usagi Tsukino is chaos wrapped in sunshine: clumsy, loud, and endlessly full of heart. From the day she spills chocolate milk all over Seiya's uniform, their lives intertwine in the most unexpected, wonderful ways. They share everything—notes, secrets, laughter, even silence—until friendship begins to blur at the edges into something softer, scarier, and impossible to name.
Through school festivals, rainy afternoons, and long summer nights, Seiya tries to hold her feelings at bay, caught between wanting to be seen and fearing what that might mean. Because Usagi only talks about crushes on boys. Because Seiya doesn't know if her heart will be allowed to want what it wants.
Because some girls don't fall for their best friends.
But some girls do.
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Melodies echoed in the constellations by chaiitealeaf
Fandoms: Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon, Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon (Anime & Manga)
21 Dec 2025
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Summary
Usagi Tsukino, leader of the popstar girl group sensation, the Sailor Senshis, comes face to face with Seiya Kou, leader of his own band the Three Lights while at a banquet, starting a fierce rivalry between the two groups. As Usagi and Seiya battle both on stage and against Galaxia, what will they do with the tension growing between them?
shoutout to my sister who helped me come up with this idea!!
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My True Name by parisbluecat
Fandoms: Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon, Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon (Anime & Manga)
13 Sep 2025
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Summary
Crystal Tokyo is not the utopia it promised to be. After many years of peace, the sailor senshi are now adults, but they are not as relevant in this new reality as they had imagined.
Far away, the Starlights have disbanded; Seiya has joined the Cosmos Force, patrolling the universe to protect worlds in need.
An insidious evil appears to be rising on Earth, seemingly aided by modern technology. But the men who rule the Earth seem more concerned with selling off Earth's resources to alien buyers.
The sailor senshi will need to support each other to rediscover their power, their friendship and their worth. Usagi and Seiya will meet again - as adults.Each chapter is inspired by and based around one tarot card + one or more musical works (often Muse).
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Prismas by Chemicalfairy
Fandoms: Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon, Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon (Anime & Manga)
25 Jun 2025
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Summary
Usagi y Seiya disfrutan juntos de un festival de verano. Al entrar a la atracción de la casa de los espejos, se ven forzados a enfrentar sus dudas, temores y necesidades.
“Si algo Usagi le había enseñado, era que amar ante todas las adversidades, era poderoso. Lo hacía poderosa.”
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Sweet Tooth by Scavenging_Crow
Fandoms: Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon, Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon (Anime & Manga)
23 Jun 2025
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Summary
Ever hungry and always failing her classes, Usagi registers for tutoring the same day as she sends her friend, Taiki, photos for extra credit so she doesn't flunk out of college.
Mamoru, head of the tutoring dept, isn't sure what to do when he gets something he's pretty sure isn't for him.
Seiya, Usagi's friend wants nothing more than to have Usagi see their friendship as something that could lead to more, if she let it.
A college AU where all characters are 18+, there's love triangle / love rivalry and soft miscommunication, eventual smut and all the characters are going to live their best civilian life
*also I changed the Summary a bit, but it's the same story I have been working on
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The Mission of the Future by AnonymousSailorMoonfan69
Fandoms: Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon (Anime & Manga), Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon
11 Aug 2024
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Summary
It has been a long time since the sailor senshi have sat down and caught up with each other, It is now the 30th Century of Crystal Tokyo, everything is peaceful and the senshi are all living their lives until several new obstacles appear. Will they be able to resolve the drama and continue keeping the world at peace?
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Playing my Own Game by adorablejoker
Fandoms: Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon
02 Jun 2024
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Summary
Usagi comes home after the night the Star Lights leave, she's tired, she's hurt and she had to watch her friends die one by one...again. She couldn't do it anymore, she couldn't be the reason why people kept getting hurt. She was failing school, she was failing as a Daughter and Sister and after what happened with Seiya...she was beginning to question her heart. She can't do it anymore, she just wanted to be normal.
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star-crossed by cathedralight
Fandoms: Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon, Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon (Anime & Manga)
16 Jan 2023
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Summary
Unfavored by the stars, but always fated to meet (in spite of fate).
A collection of Seiusa drabbles.
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an inch away from more than just friends by cathedralight
Fandoms: Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon, Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon (Anime & Manga)
05 Jan 2023
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Summary
The only thing she can see with clarity is Seiya on the opposite side of the coat closet. Hunched forward, his outline is curved like he might disappear amidst all the hangers. Before Usagi can think too hard about it, Seiya grins at her in the dark.
“Figured you’d chicken out.”
Usagi scoffs. “Please, it’s just kissing.”
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Seiya and Usagi end up in a closet together for seven minutes. It's as messy as anyone would expect.
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two slow dancers by cathedralight
Fandoms: Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon, Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon (Anime & Manga)
28 Dec 2022
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Summary
"You cut your hair!"
It's the first thing Usagi has said to him in years. Maybe it's for the best, Seiya thinks. They should start small. Something lighthearted, befitting of old friends. Not sentimental enough for former lovers, since they aren't.
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Seiya and Usagi meet again.
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Everything by atmosphericlight
Fandoms: Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon
21 Jun 2022
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Summary
A reimagining of the 'am I not good enough' scene...
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For Whom the Crickets Sing by ClockworkPorcupine for three_lights
Fandoms: Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon, Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon (Anime & Manga)
20 Jan 2022
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Summary
Seiya walks Usagi home after the concert. Feelings are (awkwardly) worked through, and the outcome is better than he could've hoped for. Takes place immediately after the events of season 5, episode 14.
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once more to see you by violctgarlands
Fandoms: Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon, Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon (Anime & Manga)
01 Dec 2021
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Summary
lifetime after lifetime, the promises of first love were something he would never turn back on— such was the devotion of a knight.
edit: renamed due to a puberty 2 listen
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Making good on a promise by Morteaforu
Fandoms: Bishoujo Senshi Sailor Moon | Pretty Guardian Sailor Moon
23 Jul 2020
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