High school student Shouichi Kamita faces the pressing realities of college entrance exams and an uncertain future. At the same time, the tangled feelings of romantic attraction start to surface in his life.
In this crucial stage, Shouichi meets three girls, each offering a different possible route: Hikari Tsuneki, always cheerful and prone to playful teasing yet capable of sweetness; Tooru Miyamae, a dedicated gamer with a competitive streak who struggles to open up; and Kyouko Touno, his childhood friend who can be childish and loves shoujo manga. Through three distinct story arcs, "Seiren" follows Shouichi's developing relationships with these young women, tracing their emotions as they grow from initial infatuation into deeper connections.
