Tracks
- 1Welcome To The Wonderful World Of HVOHappy Virus Orchestra
- 2한 발자국TitleHappy Virus Orchestra
- 31,2,3,4Happy Virus Orchestra
- 4내가 먼저 다가갈 거야Happy Virus Orchestra
- 5그대도 나처럼Happy Virus Orchestra
- 6Happy Waiting 4 UHappy Virus Orchestra
- 7스물아홉 BluesHappy Virus Orchestra
- 8Flowers In My HeartHappy Virus Orchestra
- 9Hello, My DearHappy Virus Orchestra
- 10RodeoHappy Virus Orchestra
- 11Love Da Da DaHappy Virus Orchestra
- 12Russian RouletteHappy Virus Orchestra
- 13Never CryHappy Virus Orchestra
- 14Welcome To The Wonderful World of Happy Virus Orchestra (Reprise)Happy Virus Orchestra