Synopsis

The story opens with Nobita’s mother meticulously preparing a celebratory meal for the twelfth anniversary of her and Nobita's father's wedding. During dinner, a disagreement arises between the parents regarding the sequence of their proposal. Their argument escalates, prompting Doraemon to transport Nobita back in time to uncover the truth. Arriving on the day of the proposal, they witness Nobita’s future father rushing in late. To offer him a gentle lesson, Nobita’s future mother feigns depart