Love this version of Koo Kum super much. The songs from this version 2013 matches the characters from the lakorn very much. Gun's song is called, Kum Sunya (the promise), it's about the promise Angsumalin made and more about how Vanus feels. Noona's song is called, Halm Jai (holding back my feelings), about how Angsumalin feels about Kobori and tries to do. Bie's song, Kert Mah Koo Gun (born to be a pair/together), about Kobori's feelings towards Angsumalin.