Mahiro, Nayuta, and Transforming Heroines

Mahiro, Nayuta, and Tranforming Heroines (まひろとなゆたと変身ヒロイン, Mahiro to Nayuta To Henshin Hiroin) is the fortieth chapter of the Onimai: I'm Now Your Sister! anthology series. It is written and illustrated by 9℃. It was originally published as part of Volume 3 of the anthology series on January 7, 2023.

Summary
Mahiro invites Nayuta to see a new anime movie with her.

Characters

 * Mahiro Oyama
 * Mihari Oyama
 * Momiji Hozuki
 * Asahi Ōka
 * Miyo Murosaki
 * Nayuta Tenkawa

Trivia

 * This chapter is written and illustrated by 9℃.