Nijiiro Days

Four high school boys—Natsuki, a hopeless romantic; Keiichi, a sadist; Tomoya, a playboy; and Tsuyoshi, an intelligent otaku—balance school struggles with daily antics and romantic mishaps. On Christmas Eve, Natsuki is dumped and, while alone, is given tissues by a girl in a Santa costume. He gives her the scarf he had intended for his ex. Later, he discovers the girl is Anna Kobayakawa, a student at his school. Natsuki becomes infatuated with her and attempts to get closer, though his friends repeatedly disrupt his efforts. The series includes additional chapters and three one-shots.