地縛少年 花子くん

At Kamome Academy, rumors swirl about Hanako-san, a ghost said to haunt the girls' bathroom and grant wishes for a price. Nene Yashiro, a hopeless romantic with a wish for love, summons Hanako—only to discover he's a boy, the mischievous and enigmatic "Hanako-kun," bound to the school as its seventh mystery. In exchange for her wish, Nene becomes entangled in the supernatural, serving as Hanako's assistant to maintain the balance between humans and apparitions. Joined by Kou Minamoto, an exorcist-in-training, they face eerie school mysteries, uncovering secrets about Hanako's past and the school's hidden darkness. (Unreviewed summary by Grok 2)