SeiUsa
Kou Seiya/Tsukino Usagi
With Mamoru gone (and, unknown to Usagi, dead), the Starlights' frontman fell for the lonely girl he kept catching mid-grief, asking at last if he wasn't good enough. The Stars-season almost-romance gives fandom its great Sailor Moon what-if.
What is SeiUsa?
SeiUsa is the fan-given name for the romantic pairing of Kou Seiya and Tsukino Usagi from Sailor Moon. With over 1,500 works on Archive of Our Own, it's one of the most popular ships in the fandom.
Why fans love SeiUsa
The ship lives in one unanswerable question — who Usagi might have chosen without destiny on the scale.
Characters
Common SeiUsa Tropes
Browse curated SeiUsa fic recs by trope:
Frequently Asked Questions
What does SeiUsa mean?
SeiUsa is the ship name (portmanteau or nickname) for the pairing of Kou Seiya and Tsukino Usagi. It's used by fans to tag and search for fanfiction featuring this relationship.
How many SeiUsa fics are on AO3?
There are over 1,500 SeiUsa fanfiction works on Archive of Our Own.
How can I read SeiUsa fanfiction on my phone?
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Read SeiUsa on the go
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