so the story is basically about Park woojin who proposed Bang Sunhee Chan when they were a teenagers through chats but after he proposed her he blocked her. so in present Sunhee is a detective and a spy we can call secret agent also and park woojin is a prosecutor through very special important mission they both meet with each other and her boss Mr. Kim partner them up and in first sunhee was not willing to work with him but at last gave up and partner up with him and named their group as 'The Warriors '.