Episode 4

Plot
Chizuru's continued attempts at smiling have the unintended effect of lowering Rena's self worth due to her misconception that Chizuru's actions are out of spite. Rena reflects that she measures her self worth by her success and that the previous year she had both pride and happiness due to being the class representative alongside Kazuomi, whom she has feelings for. Now having lost both the class representative position and the place at Kazuomi's side to Chizuru, Rena begins to think less of herself, and grows angrier towards Chizuru for thinking she is mocking her for her shortcomings. Chizuru however is unaware of Rena's feelings, and confides in Arata that she feels that she and Rena are becoming friends. One night after staying late at school, Rena sees Chizuru has also stayed late, and steals her school bag in retaliation for her perceived mistreatment, but she is caught by Arata. As Arata attempts to stop her, they both fall down a flight of stairs.