Man-Duk Sang

Sang Man-Duk, known in Nox as Eskalios Von Ragne Sang Man-Jin, is one of the Bishops of the mysterious organization called Nox. He claims to have changed his name to Sang Man-Jin. 17 years after RagnarÖk, he serves Yu Mi-Ra as her Bishop in Neo Nox.

(Source: The God of High School Wiki)