Min Yoongi is not a nice man.
But when you are the boss of the biggest criminal organization of Seoul, and the entire South Korea, you can’t possibly have a good heart.
Jimin is a little doll in the prostitution ring, tired of life and broken behind repairs.
They meet and decide to be broken together.
(Or, at least, Yoongi does when he suddenly takes Jimin in as his little pet, effectively turning his life upside down.)