Viral Rubicante

Viral Rubicante(バイラル・ラビキャント; Bairaru rabikyanto), better known by his Nickname Slave Master(スレーブマスター; Surēbu masutā) is a slave-trader from the Rubicante clan of Extra Demons and an antagonist in DxD: Twice Critical, looking for more lost youkai children into his slave trading system.

He's afilliate with Elizabeth Albedo/DxD: Twice Critical, making him immune to the Gremory's territory invasion tactics, therefore having to be stopped by Takumi, Kunou and Lilith.