Nan Zhi is still a baby, but she has to travel to many worlds to save children who have been hurt, abandoned, and treated poorly because of their weakness. The adult world is complex and turbulent, with love that is heart-wrenching and earth-shattering. Hate can lead to self-destruction and ruin. Children are the weakest! Nan Zhi: You need to wake up. Our baby just wants to grow up peacefully.