KissXSis
On AT-X
A lighthearted romantic comedy centered on a teenage boy navigating attraction to his stepsisters, built on slapstick humor and harem-comedy tropes rather than genuine conflict or depth.
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.
Where to watch
Not available in United States — it streams in other countries.
Questions people ask
Is KissXSis scary? No. Less frightening than 92% of series.
Is KissXSis sad? Barely. Less sad than 88% of series.
Is KissXSis easy watching? Yes. More comforting than 79% of series.
Is KissXSis violent? Barely. Less violent than 78% of series.
Does KissXSis leave you hopeful? Somewhat. More hopeful than 69% of series.
These describe how the series comes across across its whole run, compared with other well-known series. They are not a content list — nothing here was counted or checked episode by episode, so for age-suitability or specific content use a classification board or a dedicated content-warning service.
Cinnamon Score
How much this series gives you that nothing else will, and whether it delivers.
You have seen this shape before.
How unlike any other series this one feels
How much more it delivers than it promises
How much audiences actually like it
Ensemble
Everything like KissXSis, and what each one shares →
Like KissXSis
Nearest across the full emotional profile.
Same Mood as KissXSis
Nearest on what's most distinctive about this one.
Like KissXSis, But Darker
Similar, pushed toward heavier and more intense.
Like KissXSis, But Lighter
Similar, pushed toward warmer and easier.
Like KissXSis, But Less Popular
Same territory, far fewer people have seen it.
