In Gachi-Natsu, Ryota Hibiki is up shit creek, as they say. You see, he failed his university entrance exams. Luckily for him, Atsushi Kenzaki is a kick-ass tutor that not only can help him pass the exam but loves cock too. So if these two dudes get stop fucking each long enough to study, the main character might eventually pass the exam and get into college. When you put together two horny guys like this, it’s almost impossible for them to do anything but want to fuck each other night and day.