Nininja! Karakuri Ninja Mansion

Today, Nobita is beaten by Gian (Gian needs someone to accompany him when practicing karate), so he goes to Doraemon for help. However, he accidentally presses the gadget of the Ninja Mansion, which causes the gadget to run into the empty lot and KO Gian (clothes and pants are cut). As soon as Nobita returns home, he receives a call from Shizuka. It happens that Nobita's mother is going to pick up Nobita's father and guest. Nobita is worried that he can't go to Shizuka's house, so he asks Ninja Mansion to visit the house and goes to Shizuka's house himself. At this time, a postman goes to Nobita's house, but is accidentally frightened by a ninja who turns into a toad. The ninja finally makes preparations at Nobita's house. Doraemon and the person from the future department store have just returned, but they find that Nobita has used the gadget indiscriminately and the gadget are gone. The person from the future department store tells Doraemon that the thing is a defective product and hopes that he will be more careful. They also urge him to find the gadget. As a result, Doraemon is soon attacked by ninja. Nobita's father invites the minister to visit Nobita's house. As a result, Nobita's father sees the minister being attacked inexplicably. (The minister goes to the toilet); As soon as Nobita and Doraemon come home, they see the house in a mess, and Nobita's father is arrested by ninja. As a result, they are tricked as soon as they get downstairs. Nobita goes to find the ninja, but accidentally slips on the ink. Doraemon is tricked by a ninja dresses as Doraemon (dresses as a mirror). Nobita and the others finally block the ninja, but are confused by the ninja's "Clone Technique". Doraemon and Nobita think they have caught the ninja, but they ignore it in the bathroom tub. When Nobita and Doraemon are captured, Nobita's mother is frightened by the ninja mansion as soon as she comes home and beats the ninja with a broom. In the end, Nobita and the others manage to escape, but sees the ninja mansion is helping Nobita's mother dry clothes.