Spoiler!
He's the ML.
He loved Hajin for a very long time but didn't confess or anything because he knew he shouldn't cross the line.
He was content to be just Hajin's subordinate and watching him from the sideline.
When he confirm Hajin been reincarnated as Sihyun he took it as a 2nd chance and this time he confess to Hajin.
He help Hajin pay all of Sihyun's debt, uncover the truth about what happened to Sihyun and also help Hajin to avenged Sihyun.
At the end of the story after everything is done, Hajin went on a long vacation something he's been wanting to do for a very long time and he take Daejun along with him
He loved Hajin for a very long time but didn't confess or anything because he knew he shouldn't cross the line.
He was content to be just Hajin's subordinate and watching him from the sideline.
When he confirm Hajin been reincarnated as Sihyun he took it as a 2nd chance and this time he confess to Hajin.
He help Hajin pay all of Sihyun's debt, uncover the truth about what happened to Sihyun and also help Hajin to avenged Sihyun.
At the end of the story after everything is done, Hajin went on a long vacation something he's been wanting to do for a very long time and he take Daejun along with him
