The official website for the television anime adaptation of Almond's Mujikaku Seijo wa Kyou mo Muishiki ni Chikara wo Tare Nagasu: Imadai no Seijo wa Ane dewa Naku, Imouto no Watashi Datta Mitai desu (The Oblivious Saint Can't Contain Her Power: Forget My Sister! Turns Out I Was the Real Saint All Along!) light novel revealed the main staff, opening theme, new visual (pictured), and a teaser promotional video on Tuesday. The anime will premiere in 2026.

Staff
Director: Mitsutaka Noshitani (Saikyou Tank no Meikyuu Kouryaku)
Series Composition: Touko Machida (Loop 7-kaime no Akuyaku Reijou wa, Moto Tekikoku de Jiyuu Kimama na Hanayome Seikatsu wo Mankitsu suru)
Character Design: Taihei Nagai (Tensei Kizoku no Isekai Boukenroku chief animation director)
Music: SUPA LOVE
Studio: Magic Bus, Picante Circus

Singer-songwriter Kaya (Mushoku no Eiyuu) is performing the opening theme "Windmaker."

Almond wrote the fantasy romance story on the Shousetsuka ni Narou website from July 2020 to May 2022. Earth Star Entertainment published the novel in four volumes with illustrations by Yoshiro Ambe from June 2021 to June 2023.

A manga adaptation illustrated by Yona Etou began serialization through the Comic Earth☆Star website in April 2022. The seventh volume shipped on October 10.

J-Novel Club licensed both the manga adaptation and light novel in English in September and November 2023, respectively. The fourth and final volume of the light novel was released in October 2024, and the fifth manga volume shipped on October 1.

Teaser PV


Source: Comic Natalie