The soundtrack has some great tracks to listen to. It's composed by Kohei Tanaka, who notably also did most of the soundtrack from One Piece.
- The main theme sounds appropriately heroic.
- The theme for major battles and challenges gets you pumped to take on the world.
- The theme for Pleajeune fits the district that's all about its nightlife.
- The credits theme, Douse Shinundakara, is extremely upbeat and catchy even if you know what the lyrics mean. The peace you've earned might be fleeting, but there's no reason not to enjoy it.