Safe and Smooth

Li Shunsui and Li Shunan are like a quilt core and the other is like a quilt cover. They seem to be inseparable, but the core is separated from the quilt cover. It can still keep warm, but the quilt cover will not work. He will only be given up and thrown away as garbage. Li Shunshun thinks that he is the quilt cover and his brother is the quilt core.