Manjjijnamnyeo

Han Seon-Nyeo hears about an old romance manhwa from more than a decade ago, with a female lead character whose face and name are the same as hers. She obtains a copy of that manhwa by luck, and falls asleep while reading it. When she wakes up, she finds Cheon Nam-Wook, the male lead character, lying next to her. From the moment he comes "straight out of manhwa," Seon-Nyeo's normal school life begins to go awry!