Doujinshi Volume 20 Commemorative Manga

Doujinshi Volume 20 Commemorative Manga (同人誌20巻記念漫画, Dōjinshi 20-kan kinen manga) is a special chapter of Onimai: I'm Now Your Sister. It was originally published exclusively in Volume 20 of the doujinshi on February 20, 2022.

Summary
Mahiro and Mihari celebrate the release of the twentieth volume of the doujinshi and consider what the future holds.

Characters

 * Mahiro Oyama
 * Mihari Oyama
 * Momiji Hozuki
 * Asahi Ōka

Trivia
第20卷纪念