Ninako, a high school student, has never been in love. She asks her friend Daiki, who has feelings for her, about what being in love feels like. She thinks he is a good guy but...? One day, on the train home from school, she bumps into Ren, a popular guy at school. With just a short conversation and his smile, she experiences a new feeling. Just what is this feeling...!? Ninako's first love is starting!