처음 – 소녀였던, 너에게 (with 김도우)
Track 01 from Single "소녀였던, 너에게"
Release Date: 2019.06.05
처음 – 가을 (With 김도우)
Track 01 from Single "가을"
Release Date: 2018.12.04
처음 – 꽃처럼 (with 김도우)
Track 01 from Single "꽃처럼"
Release Date: 2018.10.11
처음 – 안녕, 안녕 (With 김도우)
Track 01 from Single "안녕, 안녕"
Release Date: 2018.03.28