For some reason, there are many incidents around Kirigamine Ryo, the deputy director of the detective department at Koigakubo Gakuen High School. The thief who disappeared from the school building, the relationship between the classmate and the poisoned coffee clan, the UFO turmoil of out-of-school learning-Ryo is enthusiastic about solving it, but the gag is just clear and the reasoning is developing. Is it the deputy director of the detective department who will show off the good reasoning? What is the end of the humor school reasoning?

Jessica had only met Aunt Lucy once in her life, and now she learns the woman has left her everything…including her guesthouse on Norfolk Island, a sleepy tourist attraction. Jessica is baffled why a woman she’d barely spoken to would leave her such an inheritance, but stranger still, there’s an unusual condition on her inheritance: she needs to live on the island for one month and allow Mr. Slade, Aunt Lucy’s freeloading lover, to live with her. Though she doesn't understand the circumstances of her inheritance, Jessica arrives on Norfolk Island, where she’s shocked to learn that Mr. Slade is young, charming and gorgeous! How is she supposed to share a roof with such a sexy man for one whole month?