Shigeru Morimoto

A fourth-grader investigates the mysterious reason behind the sudden appearance of penguins in his village, which is somehow related to a power from a young woman working at a dental clinic.

Takao, who is training to become a shoemaker, skipped school and is sketching shoes in a Japanese-style garden. He meets a mysterious woman, Yukino, who is older than him. Then, without arranging the times, the two start to see each other again and again, but only on rainy days. They deepen their relationship and open up to each other. But the end of the rainy season soon approaches.

Nobita was reading a picture book.In that he sees Adam and Eve disobeying god and eating the apple in the garden of Eden. Nobita comments that their descendants have to face many difficulties because of Adam and Eve's mistake. Then Doraemon reminds Nobita that he had to do his summer vacation research homework.