KissXSis
The story begins with Keita Suminoe, a male third-year junior-high school student studying for his high school entrance exams. He is living in a home with his older twin stepsisters, Ako and Riko, who share no blood relation to him, and they help him prepare for his exams. Even though he initially dislikes himself for it, he begins to become attracted to his two step-sisters, and his two parents encourage him to eventually get married to one of them.
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Search "KissXSis" on JustWatchTop cast
Ayana Taketatsu
Ako Suminoe (voice)
Yuiko Tatsumi
Riko Suminoe (voice)
Ken Takeuchi
Keita Suminoe (voice)
Yoriko Nagata
Miharu Mikuni (voice)
Asami Imai
Yuzuki Kiryu (voice)
Asuka Ohgame
Mikazuki Kiryu (voice)
Frequently asked questions
Where can I watch KissXSis online?
Our sources do not currently list any streaming, rental, or purchase option for KissXSis in United States. Try switching the country selector — availability is licensed per region and changes often.
Is KissXSis on Netflix?
No — KissXSis is not currently on Netflix in any of the countries we track.
Can I rent or buy KissXSis online?
Our sources do not list a digital rental or purchase option for KissXSis in United States right now.
In which countries can I stream KissXSis?
As of November 5, 2026, KissXSis is included with a streaming subscription (or free with ads) in Germany, among the countries we track.
Streaming availability last checked on November 5, 2026. Catalogues change frequently — data from TMDB and JustWatch.
