Kyoko and Suji are neighbors. They grew up together, sharing both bitterness and joy, and have become more than just friends. However, the boy is uncertain about his feelings and lacks the courage to take the first step. One day, the friends have a foolish quarrel. Kyoko disappears for a few days, and worried about her absence, Suji receives a videotape in the mail. In the video, an unknown man shows Kyoko how to build a strong relationship with a girl. The boy starts watching the video as an insecure young man, but turns it off as a man who knows what he wants.