You and Heeseung were top agents in the same elite spy organisation. Both incredibly skilled—and both absolutely hated each other. Every mission felt like a competition, every interaction filled with sarcasm and tension. So when you were told you’d be working together, you were furious. “There has to be someone else,” you argued. “Anyone else.” “No,” your boss replied firmly. “You two are the best. And this mission needs the best.”

You now sat stiffly beside Heeseung in the office, arms crossed as your boss explained the details. “His name is Choon-jae. Dangerous and completely unstable,” he said, flipping through a file. “He targets couples. Tortures them. Kills them.” You frowned. “Why couples?” “No idea. But tonight, he’s throwing a private ‘couples’ event at his estate. We think it’s how he chooses his next victims.” Your boss glanced between you and Heeseung. “You’ll go in undercover as a couple. Blend in, gather intel, and if possible, take him down.”

Of all the people to fake a relationship with… it just had to be him.