Wild Romance follows the turbulent relationship between Park Eun-jae, a former judo athlete turned tough bodyguard, and Park Moo-yeol, an arrogant professional baseball player for the Red Dreamers who happens to be her family's most hated rival team's star. After a drunken video of Eun-jae humiliating Moo-yeol goes viral, she is forced to take a job as his personal bodyguard to save her career and reputation. What begins as a relationship built on mutual annoyance, petty squabbles, and professional obligation soon takes a dangerous turn. A mysterious stalker begins sending threatening letters and memories from Moo-yeol's past, forcing the bickering pair to work together. As they navigate assassination threats, buried secrets, and emotional vulnerability, their forced proximity melts into a genuine, passionate romance.