ラバン・シュリュズベリイ

The professor at the Miskatonic University, he is occasionally seen wearing a black coat and shades. Being the author of the Celaeno Fragments grimoire, he owns its original copy, which can summon the Deus Machina Ambrose, a more powerful version of the Lord Byakhee. Hazuki is the human appearance of the Celaeno Fragments and addresses him as "daddy".