Y/n am kuroo are work enemies who both work in the same spy department, y/n and kuroo always fight but one day their boss told them that both of them are going to go undercover to spy on a suspected drug dealer. Their objective is to befriend the ”drug dealer” and find out if they really do drugs and bring proof back to their job, but since they both hate eachother the job gets harder. Slowly after time kuroo becomes flirty and has a crush on Y/n, even tho he’s still going to tease y/n.