The story follows Mizuki and his two sisters. Mizuki is the younger brother, has a boyish voice, is docile, kind, knows how to cook, and most importantly, has a great hairstyle. Mizuki gets a girlfriend, and it seems we'll have an incestuous NTR triangle, but no, in a dramatic turn of events, the studio nur surprises us with a plot twist rarely seen in its works that will delight fans of the incest genre.