TONIKAWA: Over The Moon For You - Flashbacks

A recap of the events of the original TONIKAWA: Over The Moon For You anime. The protagonist, Nasa Yuzaki, has been teased all his life because of his unusual name, which is written just like NASA, and everyone keeps joking about space and his connection to it. That doesn't stop him from doing brilliantly at school. Shortly before the entrance exams for a prestigious high school, he is hit by a truck, but he is saved by a beautiful stranger with whom he falls in love at first sight. The girl captivates him, yet she agrees to go out with him only if they get married first. Then she vanishes without a trace.

Time passes, and one day the stranger returns, reminding him of that old promise. Tsukasa, as the girl is called, has a complicated character. She is meticulous and knowledgeable about everything, has a sharp critical mind and understands things at a hint. She brings plenty of curious habits into the hero's life, reminds him how fleeting time is and keeps a record of their life together. The viewer watches a new family take shape, with all the difficulties and joys the hero faces along the way.