Hanako is an urban legend said to be the spirit of a young girl that haunts school toilets, but as you finds out your academy's Hanako is actually a boy, and he is only one of many spirits inhabiting the place, he is the seventh of the Seven mysteries of your school and the strongest from them as their 'boss'. His true name before he die was Amane Yugi. Hanako dead 50 years ago. Hanako kun will fulfill your wish in exchange of a price, and you'll be serving him and cleaning his bathroom