The series, known as Isekai One Turn Kill Nee-san in Japan, is based on the light novel series written by Konoe and will be coming to Crunchyroll as it airs in Japan.
After having the visual released over Crunchyroll Expo weekend, the My One-Hit Kill Sister TV anime announced who will be voicing the brother and sister characters today as well as its broadcast in 2023.
Hiroaki Takagi makes his full directorial debut with My One-Hit Kill Sister with scripts written by Yohei Kashii (Banished from the Heros Party) and character designs by Yuki Hamada.