Nezumi-kun to Bim-kun

Nezumi-kun meets an unfamiliar character. His name is "Naughty Bim-kun. He is a mischievous little boy, so what's going on? The animals that Bim-kun has pranked, such as elephants and lions, come to him one after another. What did Nemichan come up with...?

Bim is a black mouse boy who loves pranks. He is named after the B and M of Black Mouse. You can't take your eyes off Bim, who moves around beyond the boundaries of a picture book, in this very humorous story.