Hi-yunk is a songwriter and member of the band BACK-ON, under the name KENJI03. He has written songs for MAMESHiBA no TAiGUN, TONAi BOUSHO, and MAMESHiBA no TAiGUN TONAi BOUSHO a.k.a. MONSTERIDOL.
MAMESHiBA no TAiGUN
- Maramaara (with Aika The Spy, Nao of Nao, Miyukiangel, and Momoti Ngale)
TONAi BOUSHO
- TONAi GiRL’S (with TONAi BOUSHO)
- LiKE or LOVE
- Cotton Candy Story
- Sweet Home
MAMESHiBA no TAiGUN TONAi BOUSHO a.k.a. MONSTERIDOL
- HiGH HOPES
- Go Away
