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.

Having made plans with Kyouya to go shopping, Rin invites Yuki and Itsuomi to join them.

Itsuomi is away on his trip, and Yuki is left trying to come to grips with their new reality.

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