Heartwarming / The Devil King Is Bored

• The Heart of the three heroes was actually a slave the first two rescued.
• The Red Devil becoming friends with a nearly mute girl and not hesitating to rescue her when he thinks she is kidnapped.
• The Devil King is generally loud, selfish, and bombastic, but when one of his subjects asks if he can heal a human woman's illness, he does so without batting an eye.