The sixth OST for Secret Forest has the same name as the drama and perfectly reflects the whole theme of it. A perfect song choice to describe what the plot is about and what the characters feel. The main leads, Hwang Shi Mok and Han Yeo Jin, are surrounded by corruption that has plagued their professions and try to uncover all the dirty deeds their colleagues did. They truly are lost in a forest of secrets, trying to find way out.