Zha, a top student with a high IQ, goes on a journey with Mo, a professional debt collector and sometimes hooligan, in order to face down her own neurosis, as well as cure Mo of his extreme insomnia.
In the vast space, the astronauts lost connection with the ground. He recalled his greatest father in the most desperate situation. Father and son run across time, guarding love and family. The story is full of joy, warmth, tears and wonders.
