Lethal Romance (en) is a comedic and thrilling action-romance webtoon about a popular yet clumsy K-pop idol named Seo Hyejin and a cold, mysterious secret agent named Kang San. During a botched assassination attempt, Hyejin accidentally stumbles into San’s mission, forcing them into a fake marriage to protect their covers. As they navigate chaotic encounters with criminals, stalkers, and the entertainment industry, their pretend relationship slowly turns into genuine affection. Readers enjoy the series for its hilarious slapstick humor, fast-paced plot twists, and the charming dynamic between the bubbly, accident-prone idol and the stoic, secretly soft-hearted agent. The blend of over-the-top action with sweet romantic moments keeps the story lighthearted and addictive.