High school student Mio (Mari Iriki) lives in Kagoshima. Since her novelist father was lost, she has refused to go to school and lived on her father's yacht, which is anchored at a dock. Kiyomi (Asami Tanaka) likes yachting, because of her father's influence back in her childhood days. During a practicing yachting, Kiyomi lost her friend and she also quit her special yachting school. Kiyomi then transfers to a regular high school. Finally, these two girls meet.