Sweet and innocent Kim Taehyung's soulmate is Jeon Jungkook, the ungodly leader of one of the notorious criminal organizations in South Korea, BTS, who grants favors for a price and murders people for fun.
(This story is on AO3.)
Min Yoongi a Mafia. Y/N an innocent girl who agrees on marrying without knowing anything about him for her own personal reasons. Yoongi, having no need of her wants to kick her out of the house, but instead decides to make a deal with her. Eventually they both figure out to understand each other and fall in love.