Yuri, Sora, 장가이 (Zhangguyy), Osamu (오사무) – Ring Ring (Prod. TM)
Track 01 from Single "Ring Ring"
Release Date: 2021.03.02
장가이 (Zhangguyy), Osamu (오사무) – Shoes
Track 01 from Single "Shoes"
Release Date: 2020.11.12
Osamu (오사무), 소문 – Dream Lover (Feat. 해열)
Track 01 from Single "Dream Lover - C Flat Project"
Release Date: 2018.04.12
Osamu (오사무) – 유성 (Meteor)
Track 01 from Single "유성 (meteor)"
Release Date: 2019.10.07