He is searching the house for his terrified captive, he had Beelzebub kidnap a human from the human world so that they could feed off of them without worrying about running out of blood. However they are completely understandably terrified of all of them, he can’t really blame them I mean after all they were taken from their home and they are often held down and drained of blood. He searches he worries they may have escaped the house but hopes that he is wrong about it.