地縛少年花子くん [Jibaku Shōnen Hanako-kun)] #0

This Japanese edition of Toilet-Bound Hanako-Kun Volume 0 is a special release from Square Enix, collecting early materials related to AidaIro's supernatural manga series. It includes the original one-shot pilot chapter that preceded the serialization, along with bonus content such as concept art and character sketches, offering fans a behind-the-scenes look at the creation of the story about the ghostly Hanako-san of Kamome Academy's bathroom.