ともだちと恋のまんなか

Seri came to love the boy who cheered her up on that sparkling bridge when she was 9. Now coming back to the same city years later, she came to love this boy named Miura, who her friend Nose also loves. What to do about her first love and her new love, and her friend in between? Are Miura and the boy from the past really the same person?