The author uses simple, rhythmic sentences with predictable plots. With storylines closely related to a child's life and surprising endings, young readers often finish with a smile, expressing their emotions and identifying with the characters. Coupled with the illustrator's simple illustrations and child-friendly character designs, this series has become one of Japan's most influential children's books, deeply loved by both previous and current generations.
Little Mouse, despite being small and timid, has a big heart. He is kind to his friends, earnest in his actions, and his friends love playing with him. The heartwarming stories allow young readers to find happiness in the warm interactions between Little Mouse and his friends.
