Sumi introduces herself by explaining her daily routine. At the station, Kazuya meets Sumi. As they are walking, Mami spots them. Kazuya sees for himself just how shy Sumi truly is. When he questions why she is a rental girlfriend, she uses hand signals to reveal her answer. Sumi thanks Kazuya after he stopped her from getting harassed. It is then revealed that Mami was watching them.
When Kazuya returns from the bathroom, he sees that Mami is sitting at their table. While they are alone, Mami tells him that he is a more of ladies' man than she thought. Once the date is over with, Kazuya praises Sumi. At her house, a jealous Mami finds out that Sumi is a rental girlfriend. Sometime later, Kazuya is hanging out with his friends when he spots Chizuru. That night, Kazuya and Chizuru have a conversation on the balcony where she thanks him for helping Sumi. She then reveals that she landed a role in a play. The next day, Chizuru is waiting for her client when Mami shows up.