When Jinwoo, a popular 22-year-old YouTuber, contracts a deadly virus while on vacation in Thailand, his life takes a dark turn. Returning to Seoul, he's thrust into a high-stakes battle for survival as the Korean government decides to eliminate him to prevent an outbreak.
Unbeknownst to the public, Jinwoo is the son of Lee Sang-ho, a powerful chairman who hides him in a secret, fortified mansion to evade capture. Amid growing protests and global outrage, the president deploys elite special agents to find and kill Jinwoo.
Complicating matters, one of these agents is a skilled woman who was Jinwoo's first love in high school. Torn between her duty and her past feelings, she faces an impossible choice: betray her country or defy her heart. As the hunt intensifies, Jinwoo's fate hinges on whether she will follow orders or let love guide her actions.