Official Korean Translation: Lezhin, Bomtoon

Yukiteru moves to Tokyo to start his first year at college and, while he wants to "get along" with the unsympathetic Ando, the owner of the boarding house where he is living, he struggles to lead his new life in the big city. One night he catches Ando masturbating with an erotic toy. While Yukiteru was in shock, Ando told him that he should "take responsibility" by helping him masturbate and...?! So Yukiteru discovers new feelings but...