A girls' love story about a diligent but clumsy senior and a junior who pretends to be strong but is also awkward. Konatsu, who transferred from a city high school to the coastal rural Nanahama High School, struggles to fit in with her surroundings. At that moment, she meets Koyuki, the only member of the Nanahama High School Aquarium Club. Drawn to each other's loneliness, what will happen between the two?