Gwi

Gwi is major antagonist of 2015 South Korean television series  Scholar Who Walks the Night is a cetunies old vampire who lived in royal palace and worked with prime minster who seeking power aginast the King. Gwi was indectaly responsible making Prince's good friend Kim Sung-yeol as vampire also as murderer of Sung-yeol's fiancee Myung-hee and worked with the king whom ancestors helped Gwi for created of Joseon with power

About
not known of his past, Gwi was cruel and sadstic vampire who enjoy his victims to suffered or turning them as vampire servants. He also murdered members of royal family include Queen of Joseon, where Crown Prince Junghyun and his best friend Kim Sung-yeol writing books about a vampire sucked blood of King's counincbces, Sung-yeol was warrior who fight with asssisan and getting married to his sweetheart Myung-hee since childhood. Gwi orderes the King to find meals and called his guards as foolish