Reborn to the 1980s, Lin Jing is forced to sign a marriage commitment to secure her father Lin Yongjun's official position confirmation. In her past life, she submitted to the arrangement, her mother Zhang Guiying passed away from illness, and life was arduous; in this life, she tears up the marriage commitment in public and leaves the tube-shaped apartment building with her mother. Faced with cut-off food, cut-off medicine, cut-off work, and the seizure of their room, the mother and daughter do not beg for handouts, relying instead on sorting parts, workshop troubleshooting, and small-workshop labor to make a living. Lin Yongjun presses step by step, attempting to force them into submission. Through wage sheets, material return slips, and old archives, the mother and daughter restore the truth, expose the hypocrisy of patriarchal power, and finally break free from the family to embark hand in hand on a new life.