Volume 16 of Jibaku Shōnen Hanako-kun (地縛少年花子くん), a manga series written and illustrated by Aida Iro. It was serialized since 2014 in Monthly G Fantasy magazine from Square Enix.
Jibaku Shōnen Hanako-kun series takes us to Kamome academy, a place which is famous for its 7 mysteries. Nene Yashiro, is a freshman who loves these mysteries and has heard rumors that one of them can actually make a wish come true. She will go a toilet to summon it and a boy named Hanako will appear, but instead of making her wish come true, Nene will become his personal assistant.
This manga contains furigana.