Soundtrack - Wonderful Days
- Wonderful Days main Theme
- Sky
- Mother Universe (Trailer version)
- Ending Theme
- Tall Harmonica
- Wonderful Days I (Trailer version)
- Hellens Song
- A Prayer
- Aria (English version)
- Ethanol Autumn Scenery
- Wonderful Days Theme II (Orchestra version)
- Mars Theme
- Aria (Korean version)
- Wonderful Days Theme III (Piano version)