1. A good friend of the finless porpoise, a total of 144 pages.

2. "Good Friends of the finless porpoise" tells the story that the younger brother of the finless porpoise came to the Pacific Ocean from the Yangtze River alone in order to find his father, and became good friends with five different creatures: Amazon dolphins, swordfish, electric eels and octopus, and formed an ocean exploration group to explore the ocean and find his father together.