A high-ranking vampire and direct descendant of the first primogenitor, he arrived on Itogami Island ostensibly to hunt down Christopher Gardos. That story fell apart pretty quick—turns out he'd actually hired Gardos himself, orchestrating the whole thing as a way to activate the Nalakuvera and fight it. Basically, he was bored and needed entertainment. The plan backfired when Kojou, Sayaka, and Yukina destroyed the beast instead.
Fans have noted what seems like unusual attachment to Kojou, though it's heavily implied the real draw isn't Kojou himself but the Kaleid Blood running through his veins—the rare strain he inherited from Avrora. That's what actually interests the Warlord.
After the Nalakuvera incident wrapped up, he stuck around and established himself as the official consul for the Warlord Dominion on the island, cementing his presence there.
Content compiled by AnimeList.moe from publicly available sources.