Yuki, who was born in a world where sounds don't sound like anything, runs into the enigmatic Itsuomi and immediately takes an interest in him.

Yuki tries to come to terms with her newfound feelings for Itsuomi, while Oushi offers a glimpse into what he's been trying to come to terms with for a long time.

Having come to terms with her feelings for Itsuomi, Yuki prepares to make her move, but she encounters a sight that throws her into confusion and doubt.

Yuki and Kyouya each urge Itsuomi to make himself clear on where he stands in his relationship with Yuki, and he surprises them with his answer.

Itsuomi knows that a confrontation with Oushi is inevitable and decides to take matters into his own hands.

Yuki and Itsuomi have their first date as a couple, and it leads to them learning more about each other.