The young man, Serizawa, met an accident while driving from work. Just the moment before that, he passed by a woman whom he knows yet cannot remember who. After that, Serizawa who wakes up in the hospital, looks back to his past love trying to remember who she really was. From his middle school days, something that was supposed to be just a punishment game..... turned out to become something heartwarming for him. "Nobuta." He reminisces those days he thought would never come back to him.