The theme is based on the world where different species help each other and live in complete harmony. Many of the monsters are reminiscent of the subjects in the ancient chinese book, the classic of mountains and seas, which describes both the real and mythical geography of china, adjacent lands and the creatures that inhabit them. There are also a great many buildings which they use to protect themselves from the dangerous outside world. 

<Classic of mountains and seas>,an ancient Chinese book reports that in ancient times, there was a snake in Sichuan province in China, and it was so large that it swallowed an elephant. After three years, the elephant's bones were spit out. The analogy is insatiable. This type of bone can cure diseases in the abdomen.

This is a story of a cute clown playing with his lovely friends. Their world is clean and pure, and the game is their greatest pleasure.

The scent of the food is floating, in the hustle and bustle of the seafood restaurant, the crowd was full of people, and everyone was immersed in their own small world, as if they were confessing all of their stories and wishes to us. Only this romantic writer hopes to record every touched moment. But there were too many stories, and he didn't know where to start. What he didn't know neither, was that when he was lost in his memory of heartbeat, the girl behind him was heartfelt to him.