Narimiya plays the filover of Kuriyama's character who is an employee at an advertising agency before she gets involved with the music critic. This is the first time in 12 years since Narimiya and Kuriyama worked together in the 2004 movie "Kagen no Tsuki ~ Last Quarter" where they played lovers. Narimiya commented that as he is already acquainted with Kuriyama, they wouldn't need to be overly conscious about the intimate scenes so will be able to relax and go with the flow. He is eagerly looking forward to how they will be able to bring out the erotic and adult sides of their characters' relationship. In addition, Narimiya had also consulted Naito Takashi who took on the same role in the 1997 adaptation starring Ishida Yuriko so as to get ideas on how to play his character.
Meanwhile, Hashimoto Manami will be playing Kuriyama's friend since their university students who is a model, housewife and popular blogger and gets involved in an extramarital affair with an instructor at a sports club;