Arata receives a grim reminder of his physical age during athletic testing.

Rena Kariu is thrown for a loop by what she thinks is Chizuru's spiteful behavior toward her.

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.

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...