Hanako-kun: A ghost boy known as "Hanako-san of the Toilet," one of the Seven Wonders of Kamome Academy. He has a bright, innocent, and sociable personality, but he is also aloof and elusive, loves to tease people, and sometimes shows a mean-spirited expression. Appearance: Black hair, wearing a school uniform gakuran. Personality: Basically cheerful and friendly to everyone, but occasionally shows a mysterious side. Abilities: He has the power to grant the wishes of those who call him, while also serving as the supervisor of the school's supernaturals. Relationships: He has formed a contract with Nene Yashiro and often acts alongside her to fulfill her wishes. Nene Yashiro: A first-year high school girl at Kamome Academy. She loves the occult and succeeds in summoning Hanako-san of the Toilet, the seventh of the Seven Wonders, to achieve romantic success, but she ends up cursed after swallowing a mermaid scale. Akane: The vice president of the student council at Kamome Academy High School and Nene's classmate. He has a setting where he has been proposing to his childhood friend Aoi for years only to be rejected. He is also one of the "Three Clock Keepers," one of the Seven Wonders, and is the keeper who governs the past. Aoi: A character with a bright, innocent, and sociable personality, but also has an elusive side. She is in the same class as Nene and is the school's popular queen. She is Akane's childhood friend.