According to the TV Cat Network, in episode 16 of Happy Parents, an old woman fell to the ground as soon as she got off the bus, and the kind fifteen helped her up. Happy Parents is directed by Li Yafei, starring Zhang Jiayi and Chen Hao, especially Sang Ni. It tells the story that Liu Xiangshang's family became friends with friends, neighbors and other students' parents because their children started school, and the novice parents facing various emergencies and the children of Ghost Horse Elf jointly ushered in a new classroom of education and a new starting point in life.