My One-Hit Kill Sister

Name: My One-Hit Kill Sister
Genre: Action, Adventure, Animation
Released: 2023-01-01
Rating: 6.3
Cast: Yuki Sakakihara, Haruka Shiraishi, Ami Koshimizu, Azumi Waki, Rio Tsuchiya

異世界ワンターンキル姉さん～姉同伴の異世界生活はじめました～

2023| 1 season| IMDb 6.3

My One-Hit Kill Sister (2023) is currently available in the UK on Crunchyroll. Last updated 20 January 2026.

Streaming availability last checked 20 January 2026

Action Adventure Animation

Asahi loves the idea of magical fantasy worlds. And somehow, he’s transported to one! He’s eager to explore and use his new abilities, except he learns he doesn’t have any. But his older sister Maya is in this world too, and she ends up having the strongest cheat skills imaginable! Now, Asahi starts his new life with a doting sister who can kill any beast with one hit.