Kill Me, Heal Me to Cruel City: K-Dramas that male leads in grey character

Kill Me, Heal Me tells the story of Cha Do Hyun, the son of a Korean conglomerate, secretly hires psychiatric resident Oh Ri Jin to treat his multiple personality disorder.

Heartless City tells the story of Lee Kyung-mi, who suffers a brutal fate while undercover in the criminal underworld, Yoon Soo-min is desperate to start where Kyung-mi left.

Vincenzo is the story of a Korean-Italian mafia lawyer who gives a conglomerate a taste of its own medicine with a side of justice.

Strangers from Hell is the story of unpleasant events that disturb the life of an aspiring crime fiction writer.

Moon Lovers: Scarlet Heart Ryeo is the story of Ha-jin travels 1000 years back in time and lands in the era of the Goryeo Dynasty as a young girl named Hae-soo.

Six Flying Dragons tells the story of Yi Bang-won, the future king, who feels threatened by his father's most trusted man, he decides to create conflict and take over the entire nation.

The Penthouse: War in Life tells the story of residents of Hera Palace live a life of wealth and prestige. Secrets are revealed and relationships crumble behind closed doors after a death takes place in the 100-storey building.