The Haunted House (anime)
Guido-hyun (귀도현) is a new character in Season 4, he is the older brother Kang-Lim. He is also a dark exorcist but betrayed the organization after finding out that he was being manipulated. In Season 4 part 2 episode 12, he sacrificed himself to save Kanglim and Hari. It is said that he may return in Season 5, Ghostball ZERO.