Since her husband Takeo passed away, Yu's relationship with her mother-in-law Maya, with whom she lives, has been steadily worsening. Yuu, fed up with Maya's constant quarrels, decides to run away from home with Takeo's inheritance. A few days later, a lawyer comes to handle the inheritance paperwork and tells Yuu a shocking truth: "Takeo owes you money." With no way to repay the debt and with her health falling ill, Maya shows her kindness. However, she has no idea that it's all a cleverly orchestrated trap by Maya...