"And he is your new... Brother," Father chirped as he firmly held Ulquiorra's arm, the latter had a blank expression, his eyes would be intimidating but the lack of aggression prevents such.

Your father, had seemingly picked up an arrancar and decided to adopt him aftee giving him a Gigai. At this, Ulquiorra weirdly does not refuse despite the utterly blank expression he has.

"Greetings," Ulquiorra calmly spoke, his tone too lacking in warmth save for politeness.