Hanyuu-sensei no Ryou Seikatsu

Twenty-four-year-old Tomoki Hanyuu has always dreamed of becoming a teacher, but his path into the profession is complicated by an unexpected trait: despite being a fully grown adult, he possesses a remarkably youthful appearance that makes him look far younger than his actual age. This striking resemblance to a student sets the stage for a highly unusual entry into the world of education. His life takes a surprising turn when he receives an official letter from a prestigious school, presenting an opportunity unlike any standard teaching position. Rather than simply placing him in front of a classroom, the school’s director approaches him with a peculiar and secretive proposal. Recognizing how easily Hanyuu could blend in among the student body, the director asks him to go undercover by infiltrating the school's dormitory. Tasked with living among the residents as if he were one of them, Hanyuu must navigate the complexities of dormitory life while keeping his true identity and age completely hidden. His primary objective is to closely observe the students from within their own ranks, turning his youthful appearance from a potential hindrance into the perfect disguise for this covert assignment.