Yuuki Kagurazaka

A former student of Shizu who originally came from Japan and ~!one of the main antagonists of the series. !~ Yuuki serves as the Guild Master of the Adventurers' Guild in the kingdom of Ingracia, and he loves manga.
~!Although Yuuki first comes as a friendly person he is actually a master in manipulating others without hesitation to achieve his goal of a just world that treats everyone fairly. Even though Rimuru and Yuuki get along at first he later addresses Rimuru as a very serious threat to his plans. !~