Liu Huilan, the owner of a secondhand goods shop, is constantly troubled by her family's debts. She reaches a one-year mutual assistance agreement with Jiang Zhenshan, who is temporarily staying in her residential community, and they agree to present themselves as family to outsiders. As they face life's challenges together, they gradually build trust while also experiencing misunderstandings and disagreements. Ultimately, the responsible parties are held accountable through legal channels, and the debts and past issues are properly resolved. Through her own hard work, Liu Huilan reopens her shop, while Jiang Zhenshan honestly reveals his past. The two continue living together on equal and respectful terms.