Replica datte, Koi wo Suru.

Almost no one knows that Sunao has a replica. She appears whenever Sunao is sick or simply does not want to go to school, takes her place for the day, and disappears again when her task is done. She accepts being nothing more than a substitute until classmate Sanada talks to her and becomes the first person to notice that the girl in front of him is not quite Sunao. Wearing her hair half-up becomes their private sign, and repeated meetings awaken feelings that belong to the replica alone. Knowing that her time and even her identity are borrowed makes a simple promise to meet again tomorrow more precious than she ever expected.