Na Kang Lim, a high school student who enjoys reading webtoons, experiences a strange event one day when the female lead from his favorite webtoon appears before him. Even more surprising, the same incidents that put her in danger in the webtoon start happening in real life. The problem is, there's no protagonist in the real world to save her! Ultimately, Na Kang Lim takes on the role of the protagonist, looping through time to save her.