Do You Want Nobita, the Cat?

Nobita wants to raise a discarded cat. In order not to let his mother find out, Nobita uses Doraemon's "Animal Transformation Egg" to transform into the cat. Nobita also helps his mother to turn off the electric iron by the way. When the old man sees the cat, he tells Doraemon that the old man lost it because the cat breaks the vase. The grandson cries and says he wants to get it back. The old man is finally able to find the cat, and Nobita returns to his original state. Nobita's mother finds that the cat is gone, and Nobita turns back into a kitten again, but Nobita's mother complains why Nobita doesn't come back.