Two young police detective had to partner up in solving cases together. Both have different personalities and hidden secrets. Would they be able to overcome their differences and work as a team?   "I don't need a partner." D.O stated firmly. "You'll need me as your partner." Kai stubbornly said. "Both of you would work as  a team, and that's an order!" The chief ordered.   Disclaimer : This is my very first fan fiction, so please be nice and considerate