Black - Ml is a grim reaper. He doesn't care about humans at all until fl.
Cheese in the Trap - Though ml is generally liked by his surroundings, he is very creepy and the subtext is that something is wrong with him.
City Hunter - Ml's mission is basically killing a bunch of people.
Cruel City - Ml is a mafia boss.
Flower of Evil - Ml is a suspected serial killer.
History3 Trapped - One of the mls is a criminal.
Long Time No See - One of the mls is a criminal.
Lust, Caution - Ml is both the villain and the ml in this movie.
Moon Lovers - Ml is feared by everyone and doesn't care about anyone except fl.
Terius Behind Me - Ml is a suspected traitor.
Innocent Man - Ml is morally ambigous and will do just about anything to achieve his goals.
Legend of the Blue Sea - Ml is a scam artist.
Smile Has Left Your Eyes - Ml is a suspected murderer and generally very creepy.