- Once upon a summer, a boy appeared suddenly in front of Nobita. The mysterious visitor called himself Sewashi, who turned out to be Nobita's descendant, claimed that the family is suffering from debts Nobita madden to his generation! In order to change this disastrous future, Sewashi brought along Doraemon, a 22nd century cat-type robot that helps people with his secret gadgets, to serve as Nobita's caretaker. This is how the life of Doraemon and Nobita begins. Will Doraemon succeed this mission and bring true happiness to his clumsy master?