Ichiko finally opens up to Otoya about her painful past when they visit her mother. A few days later, Mitsuki warns him they need to be more secretive with their dates because her husband had seen them together. Mitsuki becomes angry when Otoya reveals Ichiko knew about her all along. Meanwhile, Ichiko visits a secret brothel for women and finds herself charmed by the young Rei.

Ichiko and Otoya decide to rekindle their sex life, but their excitement quickly turns into frustration. Otoya is haunted by Mitsuki's curse-like words of goodbye and Ichiko cannot stop comparing him to Rei. When he happens upon Ichiko and Rei together, Otoya finally learns that Ichiko had paid Rei for his services. Unable to contain his disdain, Otoya blows up at Ichiko.