The Song for the Sky and Tomorrow - S1.E26

Coud and the others are no match against Ren reacted with the three Chaos Choir leaders, but they continue to fight to save Ren. During the battle, Eve contacts Coud telepathically to sing a song within him. Chanting the song, Ren regains control of her body and sings the lost song with Coud. Contracts between Edel Raids and pleasures are broken and the Chaos Choir leaders are shocked because they did not believe the prophecy will come true. They declare their defeat and the war is over. Coud goes back to his life as a Red Lynx sky pirate and Ren stays with him in the end.