That Day, I Suddenly Had a Sister

Li Nanxing firmly believed that women in the world were a disaster, until his father, who had been missing for many years, suddenly brought a sister who was like a porcelain doll and could not speak. Forced to become a "guardian", he originally only wanted to rely on her to earn rewards from the system. He kept his distance, but he didn't expect that her every move would quietly affect his principles. When the shadow of the past strikes again, Li Nanxing realizes that this sister who cannot speak may be the light that he needs to protect most in his life.