Singer/actor Hwang Min Hyun relayed the feelings of his own character Seo Yool in the ongoing tvN Sat-Sun series 'Alchemy of Souls: Light and Shadow' by singing his very own OST, titled "Tree (Just Watching You 2)".

OST Part. 2 for tvN's 'Alchemy of Souls: Light and Shadow', "Tree (Just Watching You 2)" is a remake version of "Just Watching You", originally sung by Jung Se Woon as an OST for 'Alchemy of Souls' season 1. Adding Seo Yool's own, complex emotions into the moving lyrics, "Tree (Just Watching You 2)" will continue to play an important role in the story of 'Alchemy of Souls: Light and Shadow'. 

Meanwhile, tvN's 'Alchemy of Souls: Light and Shadows', starring Hwang Min Hyun, Lee Jae Wook, Go Yoon Jung, and more, airs every Saturdays and Sundays at 9:10 PM KST.