The Legend of the Legendary Heroes — S1E24 · A Distant Day's Promise

Sion is consumed by the spirit of the mad hero, as he nearly takes Ryner's life. Iluna comes out of Ryner, who has the spirit of the lonely demon within him, to prevent Sion from killing Ryner out of selfish ambition, but Lucile puts Ryner to sleep after Iluna disappears. Sion hesitates to kill Ryner when confronting the mad hero. When Ryner then finds himself in prison, Ferris helps him narrowly escape peril.