After the 18-year-old rich girl Aya chose the maid Sheila, her mother Tana suddenly favored the maid, deprived her of inheritance rights and treated her harshly. Aya firmly believed that her mother was possessed by evil spirits, but she was repeatedly misunderstood when collecting evidence. She was even banned from going to school and forced to give up her bedroom. Until her father Anu returns home, Aya discovers his affair and conspiracy with Sheila - the two want to use "magic" to control Tana and murder Aya to seize the family property.