When ToTo and Ahya visit a dinosaur exhibition, ToTo happens to find a tiny part of a gigantic dinosaur model, and brings it home. That night, TV news says that due to a missing part, a dinosaur dance show has to be cancelled the next day. Ahya and ToTo dream of the dinosaur chasing after them with limping legs that night. Upon awakening, ToTo is upset over his deeds. Eventually, Heavenkid helps them with a night adventure to return the part to the museum. This story reminds children not to commit small evils thinking them trivial.