Shen Zhiyao thought that if she endured it, she would be able to gain peace in her family's home, until her mother-in-law forced her to raise the niece left behind by her late brother and asked her to give up her daughter's room. She backhandedly changed the property certificate of her only marital home to the name of her daughter Zhou Nianyao. Her mother-in-law angrily scolded her for not knowing filial piety, her husband remained silent, and her seven-year-old daughter wrote "Mama is a castle" in her drawing book. When her niece stole a copy of the real estate certificate in the middle of the night and her former colleague handed her a legal manual, she realized that what she really should protect was not the face of her husband's family, but a future where her daughter could breathe freely.