Dire Crowley

Dire Crowley is the masked Headmaster of the prestigious magical training school, Night Raven College. His catchphrase is, "Because I'm so kind." After Yuu ends up lost and is summoned to Twisted Wonderland, he is the one who takes them in and appoints them as Prefect and leader of the Ramshackle Dorm. Supposedly, Crowley is researching ways for Yuu to return to their original world.

(Source: Twisted Wonderland Wiki)