Top is a leader of a dangerous gang. GD is the leader of Top's rival gang. GD is dating Yubin. Top loves Yubin. Yubin loves Top back. When Yubin leaves GD for Top things get way out of control

(this was my first big bang fanfic)   Choi Seung Hyun had always tried to put off that tough, hardcore, gangster guy persona. He never really showed his deep emotions, either. Even though he had the best of friends, millions of fans, and a loving girlfriend, he was lonely. He thought he loved his girlfriend, a cute Japanese girl named Etsu, but deep down he really didn't. He didn't really love anyone, until she came into his life.