The shinigami jumped making Hiei slightly grin since he caught two birds off guard with one pebble. The shinigami looked at him a spoke call him “Mr?” Hiei wasn't use to hearing that so he looked at Yuki for a moment before answering. “Hiei, just Hiei...” he said to her as he the turned his attention to the damage that was done. Naturally being the Demon of Envy he was normally judged from what his superior does, which was normally something bad.
Arturo then commented making Hiei turn his face away when he really wanted to roll his eyes. He wanted to say something, but he didn't need to learn his place twice so he stayed quite and listened to what Arturo had to say. Hiei hated to be told what to do, but until he became strong enough to argue he just stood straight and answered Arturo respectfully. “Yes sir.” he said before hearing the shinigami's voice.
He turned to look at her confusedly, she seemed kind and that wasn't what you find in Hueco Mundo. Hiei sure needed a place to stay, but wasn't saying anything since he was a lower ranked member. He then looked back at Arturo wondering if he still wanted him to fix up the mess Jeff and Bloodhound created. He held a blank expression and said nothing, like an obedient servant; but inside he was snappy.