[Jikook Fic Trailer] E N E M Y (Full Unedited Trailer) 

CEO - Owner of Posco Steel and Construction Company is known for being a charismatic, corporate servant who grew his great-great grandfather's business to massive profits. But the brilliant CEO also has another pesky little family business - one that he's not as fond of.
When his path crosses with a young, eager detective by the name of Jeon Jeongguk, the two enter into a game of cat and mouse as each tries to out smart the other.
This story is all about emotions. Regular people are do irregular things and how they cope with the ethos of evil.
Light angst, heavy themes of violence, morally ambiguous character, absolutely insane sex. Very Very violent and graphic scenes. Please use caution before reading.
Now Posted on AO3. Link in the comments