The manga series Toilet-Bound Hanako-kun, written and illustrated by AidaIro, starts serialization.
The first tankobon volume of Toilet-Bound Hanako-kun is released, compiling the initial chapters of the manga.
Announcement is made regarding an anime adaptation of the Toilet-Bound Hanako-kun manga.
The anime adaptation of Toilet-Bound Hanako-kun premieres in Japan.
The English dub of the Toilet-Bound Hanako-kun anime begins airing.
The manga series reaches a milestone of 10 published tankobon volumes.
Hanako-san becomes the supernatural entity haunting the third stall of the third floor girls' bathroom, establishing her as a school ghost legend.
Hanako-san dies tragically and is reborn as the protective spirit Hanako-kun, taking on the role of granting wishes and maintaining balance in the school.
Nene Yashiro, a student at Kamome Academy, knowingly summons Hanako-kun and becomes involved in the supernatural occurrences, joining the investigation of the Seven Mysteries.
Hanako-kun protects Nene from a violent spirit, revealing his powers and his role as one of the Seven Mysteries.
Kou Minamoto, a member of an exorcist family, encounters Hanako-kun and becomes part of the overarching conflict involving spirits and human interactions.
The deeper truths behind the Seven Mysteries, including their origins and connections to school history, are explored, affecting the roles Hanako-kun and others play.
Details about Hanako-kun’s human life, death, and how he came to assume his supernatural role come to light, giving depth to his character and motivations.
Hanako-kun and allies face challenges from higher supernatural powers overseeing the balance of spirits in the school and beyond.
