Ryou reflects on the year before and his failure supporting test subject no. 001

Honoka is distracted by her troubles and inadvertently causes an injury to Rena.

The rift between Rena and Honoka grows ever larger as the former decides to retire from high-school volleyball, but Chizuru and Arata decide to fix things.

Things come to a head as Chizuru and Arata decide to confront Rena over her behavior.

Arata, once and for all, tries to make the dense-as-can-be Kazuomi realize what he has in his hands.

At the fireworks display, everyone puts their plans into motion and tries to make things work between Kazuomi and Rena. Meanwhile, a different pairing begins to take shape...

Chizuru loses the position of class representative to Rena. Realizing she was preoccupied with her feelings for Arata, Chizuru confronts Ryo asking him if Arata is a ReLIFE subject. He doesn't want to confirm it, warning her that exposing a test subject would end the experiment for him and they would never see each other again.

Everyone is having fun at the cultural festival and the class' English-style cafe, but Chizuru and Arata can't stop thinking about being erased from their friends' memories. A discussion between Ryo and An reveals that Chizuru's and Arata's memories of each other will be lost as well.

Chizuru does not understand her current feelings for Arata and starts to avoid him to try and “see things from a different perspective”. However, after talking it over with Honoka and Rena, she asks Arata out for a Christmas date.

At Arata’s apartment, Ryo tells Arata that his ReLife was a huge success and offers him a list of jobs and a pill that will end his ReLife. At Chizuru’s apartment, An is doing the same thing with Chizuru. Chizuru falls asleep after taking the pill and An sees that she had written “I was in love with Kaizaki Arata” on her hand and that she will have to erase it despite it is against her conscience.