Yoongi a.k.a Suga is an undercover agent that is well-known in the bidder's world because of his personality, preferences and because he would always buy slave at high prices. He is now investigating about human trafficking and had his job extended to a few months just to save a rich bastard's son. 

Enter Park Jimin, a mute 22 years old guy who happens to be the rich bastard's son. 

Yoongi found himself falling fast and hard.