Wakana Gojou is exceptionally skilled at making clothes for Hinaningyou but he has no friends in high school as a freshman. His finesse with the sewing machine is soon discovered by his beautiful classmate Marin Kitagawa, whose boldness and honesty Gojou both admires and envies. She is interested in cosplay as characters from erotic video games but cannot sew her own costumes, which leads her to seek Gojou's expertise. Thus, despite the polar opposites, the relationship between Gojou and Marin slowly blossoms through their aptitude in helping each other.