Iro Aida’s ongoing Toilet-Bound Hanako-kun (Jibaku Shōnen Hanako-kun) is a Japanese fantasy manga series; it has been serialized in Square Enix’s Monthly G Fantasy since 2014. Volume 1 collects the first five issues.
Hopelessly romantic first-year-student Nene Yashiro spent three years reshaping herself into the sort of girl she thought her crush would prefer before confessing her love to him. Result: a brusk, rude rejection. Desperate for a boyfriend, Nene appeals to Hanako, the powerful supernatural entity who is said to live in the Kamome Academy High School’s girl’s washroom. She will ask Hanako to force the attractive Minamoto-sensei to fall in love with her.
To her surprise, Hanako is real. Even more surprisingly, Hanako is a he, not a she. The final surprise? He’s reluctant to use magic when mundane means could serve.