At Tokyo's suburbs some time ago, there dwelt a boy about 10 years old. There seemed at front of him termed Nobita's descendant of four centuries afterwards from the 22nd century Sewashi, and Doraemon. Sewashi claims his family is suffering from the debts Nobita made even to his generation, therefore as a way to improve this devastating future, '' he brought because Nobita's caretaker although Doraemon isn't happy about it to bring happiness into his future. And so Sewashi installed an achievement program forcing him to take care of Nobita. Unless he makes Nobita happy, Doraemon cannot return back to the 22nd century. This is the way the life of Nobita and Doraemon begins. Can Doraemon succeed this mission and return into the century?