A high school girl who transferred to another school due to family reasons cut off her love for her childhood sweetheart and lived in a strange town. The flamboyant boy I met by chance is the most vivid color in my memories. The rushing time, the ignorant love, the separated lovers, the brother who is close at hand, his departure, his return... The past time is a two-dimensional axis, and you are the only three-dimensional existence, three-dimensional and vivid.