Hibiki Shimada, an ordinary 17-year-old high school student, still doesn't know how to fall in love—even though she is surrounded by love "experts"—until one day she realizes she has fallen for her handsome and kind 26-year-old teacher, Itou. She then sets out on a path to help her teacher understand how she feels about him. Included one-shots: Volume 1: Tomodachi nante Iwanaide Volume 4: Chocolate Sensou