Lee Yongsun couldn't believe what he just experienced. He thought that was the last time for him to see his Yunyu Hyung. He was already thinking about ending his life once he returned back to hell.
Because he had no other purpose in life except having his Yunyu Hyung by his side. As shallow as it could be, Lee Yongsun had only loved his Yunyu Hyung for his entire life, either as Im Jaehwa, the foolish young man or as Lee Yongsun, the devil.
He agreed to be the devil because he thought he could bind Yunyu Hyung with him this time, not letting him go and not letting Yunyu Hyung betrayed him for the second time.
Yet, when Yunyu Hyung was about to leave him again, Lee Yongsun couldn't hide his desperation. He cried and begged Yunyu to stay with him, even though he knew it was a futile struggle.