Chu Yue, an urban white-collar worker who has been a "perfect sister-in-law" for five years, completely woke up after hearing her sister-in-law say, "Aren't sisters-in-law just free nannies?" She resolutely signed the divorce agreement and turned to devote herself to her career. When the ex-husband's family tried to redeem themselves, they discovered that what they had lost was not a "sister-in-law" but the ticket to the entire world.
