Rinta, a freshman who moved from the countryside to attend university in the heart of the city, joins the literature club and meets Fumi-san — the girl rumored to be the most beautiful on campus. After a club drinking party, he ends up walking her home. Just as he’s about to leave after seeing her safely inside, Fumi-san suddenly changes — and pulls him toward her bed. “How long do you think you can keep being such a good boy, Rinta-kun…?” With his composure tested to its breaking point, Rinta’s peaceful college life takes a forbidden turn, filled with temptation and desire.