sniper, sniper, sniper [heehoon]

Lee Heeseung, a top secret agent, is tasked with taking out the mysterious second prince of the royal family, just like a mission he's carried out countless times before. But when the target turns out to be Park Sunghoon, his first love and greatest heartbreak, Heeseung is thrown into a dangerous web of secrets, betrayal, and forbidden emotions.

Now, with their lives and love on the line, Heeseung must decide: follow orders, or risk everything to protect the man he never stopped loving.