Kaori has a physical relationship with her daughter's lover Atsushi. He believes that if his daughter and Atsushi get married, they will be able to live together. The figure that Atsushi and his daughter are in love with each other. Kaori can't control her desire to take him away from her daughter and monopolize him. Kaori is passionately entwined with Atsushi, hiding from her daughter and hiding her guilt towards her family. Kaori draws a certain conclusion at the end of her lust and speculation.