Kuzu Seito to Stalker-sensei

Mizutani, a 29-year-old man seeking a fresh start, is living a second youth by enrolling as a high school student, following a friend's suggestion. He becomes concerned when he notices that his homeroom teacher, Kuriyama, is watching him closely. After being spotted by her at a bar and taken to a love hotel, he is surprised by an unexpected romantic confession. He is then threatened with blackmail photos and pressured into a relationship with the teacher. A separate one-shot story features a scenario in which he is asked for emergency kisses.