2Tree (Just Watching You 2) (feat. 민현)
4From the Highest Place (feat. 남혜승)
6The Thing I Can Give You (feat. Won Ye Na)
7Like Nothing Ever Happened (feat. 남혜승)
8On Top Of The Tree (feat. 남혜승)
11At First Sight (feat. Chun min jung)
12Imperial Star (feat. Kim Mun Jeong)
14My Confession, My Sincerity (feat. 남혜승)
15The Only Wolrd (feat. Won Ye Na)
17Another Name (feat. Chun min jung)
19Walking Through Memories (feat. 남혜승)
20A Door That Can´t Be Closed (feat. 김우정)
21Schizophernia (feat. Chun min jung)
22Light and Shadow (feat. 김수현)
23Just Like The Two Of Us (feat. Won Ye Na)
24Into The Storm (feat. 김우정)
26A Drop Of Power (feat. Heo Mi Ho)
27Yun‐Ok and Heo Yeom (feat. 남혜승)
