Eikyuukei

A story about a criminal who was sentenced to "eternal punishment." The main character, Touma Kuga, was aiming to take medical school entrance exams, having heard that his classmate, Satou Rin, whom he is in love with, said that if she were to marry someone, it would be a doctor. By chance, Kuga is able to go on a date with Satou, touring universities, but the two get involved in a certain incident... (Source: MangaDex)