Atsushi Sakagami, a high school student falls in love with Kaname Sagara, an office worker, when he hears his very beautiful voice on the phone which he dialled by mistake. Atsushi disguises his age and starts dating him by cell-phone. But Kaname is a man for whom Atsushi's elder brother, Suguru Sakagami, is an insurance agent. Suguru sets himself up as Atsushi and has a date with Kaname...