My Big Sister Arrived
Created by Rikou Anzai
A lighthearted, comedic slice-of-life anime about family adjustment and romantic misadventure, built on playful awkwardness rather than genuine conflict.
Tomoya’s father remarries to another woman, giving him a stepsister, Ichika. However Ichika is 17-years old and has completely fallen in love with her stepbrother who is only 13!! Families will collide in the most unusual fashion this season, in the new anime short: ONEE-CHAN GA KITA!
Clusters
Questions people ask
Is My Big Sister Arrived scary? No. Less frightening than 92% of series.
Is My Big Sister Arrived violent? Barely. Less violent than 89% of series.
Is My Big Sister Arrived easy watching? Yes. More comforting than 86% of series.
Does My Big Sister Arrived leave you hopeful? Yes. More hopeful than 81% of series.
Is My Big Sister Arrived sad? Barely. Less sad than 80% 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
Like My Big Sister Arrived
Nearest across the full emotional profile.
Same Mood as My Big Sister Arrived
Nearest on what's most distinctive about this one.
Like My Big Sister Arrived, But Darker
Similar, pushed toward heavier and more intense.
Like My Big Sister Arrived, But Lighter
Similar, pushed toward warmer and easier.
Like My Big Sister Arrived, But Less Popular
Same territory, far fewer people have seen it.
