My One-Hit Kill SisterMy One-Hit Kill Sister.

My One-Hit Kill Sister (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〜, Isekai Wan Tān Kiru Nee-san: Ane Dōhan no Isekai Seikatsu Hajimemashita; "One Turn Kill Sister in Another World: I Started Living in Another World with My Older Sister") is a Japanese web novel series written by Konoe. It was serialized online on the user-generated novel publishing website Shōsetsuka ni Narō from December 2019 to June 2023. A manga adaptation, illustrated by Kenji Taguchi, was serialized online via Shogakukan's Sunday Webry website, as well as the seinen manga magazine Monthly Sunday Gene-X, from March 2020 to July 2023.