Hakuryuu Ren is the Kou Empire's fourth Prince. Hakuryuu is the owner of the Djinn, Zagan. He is a Dungeon Capturer, capturing one Dungeon, and a King Candidate. He is one of the main characters of Magi. He is voiced by Kensho Ono in the Japanese version of the anime and Darrel Guilbeau in the English version, the former of whom also voices Mikaela Hyakuya and Slaine Troyard.