Onimai Side Reader: Mihari's Laboratory

Onimai Side Reader: Mihari's Laboratory (おにまい副読本みはりの研究室, Onimai Fukudokuhon Mihari No Kenkyūshitsu) is a spin-off doujinshi volume of Onimai: I'm Now Your Sister!. It was originally released on August 13, 2023.

Contents

 * A Story Where That Grows
 * Mihari and the Drinking Party
 * A Story Where That Grows Part 2

Trivia

 * According to Nekotofu, the chapters contained in this volume are meant as sort-of spin-offs from the main series that focuses on other characters that he hopes to create more of in the future.
 * "A Story Where That Grows" was originally released in the Mihari-chan in the Laboratory doujinshi on May 27, 2023.