As a child, Mo Mo lost her strange friend A Fei who traveled thousands of miles to find her. Finally, without her parents, she left the earth and went to the depths of the universe, completely losing contact with A Fei. In order to prevent the extinction of intelligent creatures in the universe, Mo Mo lost his memory and the ability to acquire idealism, leaving only the memory of A Fei as a clue to find himself.
The promises made when he was young, the partners he grew up with, the choices he made as an adult, and the deaths again and again, Mo Mo hid his name as Qian Qian. Until everyone calls her Qian Qian, can she still find the last person who calls her Mo Mo?
This is a story of search, a story of mutual redemption.