Yatogame-chan Kansatsu Nikki (manga)

Yatogame-chan Kansatsu Nikki (『八十亀ちゃんかんさつにっき』; Yatogame-chan Observation Diary) is a 4-panel manga that is written and illustrated by Masaki Andō which launched in Ichijinsha's shōnen manga magazine Monthly Comic Rex on May 28, 2016. The manga serialization is ongoing, but has been collected into 10 volumes through 2021.

Characters

 * Main
 * Monaka Yatogame
 * Yanna Sasatsu
 * Kaito Jin
 * Mai Tadakusa
 * Toshika Jin


 * Supporting
 * Nao Koshiyasu
 * Rarin Janda
 * Mutsuki Ittenmae
 * Teppei
 * Recchiri-sensei
 * Lala Hatsunezawa