"The Scholar Who Walks the Night" is a 2015 South Korean television series based on the manhwa of the same name by Jo Joo-hee and Han Seung-hee. The story is set in the Joseon Dynasty and follows Kim Sung-yeol, a noble scholar who is also a vampire. He lives immaculately dressed in scholarly robes and walks the night as a guardian vampire, fighting against the evil vampire Gwi, who manipulates the royal family for his own ends. Sung-yeol is driven by a promise to his friends and the memory of his lost love, striving to stop Gwi's reign of terror while maintaining his human nature
. The series combines elements of historical drama, mystery, romance, and fantasy, and features a cast led by Lee Joon-gi as Kim Sung-yeol. It aired on MBC from July to September 2015 for 20 episodes
. The plot also involves a woman from a fallen noble family who disguises herself as a man and becomes a bookseller, eventually crossing paths with Sung-yeol
. In summary, "The Scholar Who Walks the Night" centers on Kim Sung-yeol, a vampire scholar who walks the night to protect the kingdom and fight against dark forces threatening the royal lineage
