Episode Title:
Resonance.
Episode Description:
A flashback explains that Emi threw away all of her ambitions in order to learn how to play the piano, after hearing Kōsei perform for the first time. After a resonating performance, Emi heads backstage to the hallway and attempts to confront Kōsei, but she finds herself bereft of words and just walks away. After another intermission of fifteen minutes, Kōsei comes onto the stage to play his set piece. As Kōsei approaches the piano and plays the set piece, he confronts his past. He first wanted to win every piano competition, believing that would cure Saki from her terminal illness. However, he wished for her to die since he could no longer handle her strict manner and abusive attitude, later feeling regretful for what he said after she died. That feeling comes back to haunt him as he feels trapped in an ocean again, not being able to hear the notes anymore.
