Sae Hagiura, a typical college student who just wants to have a normal, low-key life, learns that the tall and handsome returnee twins Yu and Shu have enrolled at his college. Even though he's decided to avoid them as much as he can since they aren't his type, he spots them arguing with a woman by the red-light district on his way home from work. After Yu and Shu use Sae by pretending they have dinner plans with him to get the woman to leave them alone, they drag him into their shop and use him some more...!