Cinderella In The Gutter

In the rotten neighborhood of Changseong, a girl named Hui-Eon lived crushed under debt. When she was on the verge of being dragged into the red-light district, it was the gangster Mugeul, appearing like the wind, who saved her. “I'm good at studying. I can pay off the debt without having to work down there.” “This little thing's surprisingly impressive. Start working here tomorrow.” Spending time by Mugil's side, Hui-Eon gradually succumbs to his warmth. But the moment he realizes her feelings, Mugil turns cold, unlike before... “Just call me ‘Uncle’. I'm not your boss when you're sucking dick.”(Source: Ridibooks, translated)