There's not enough proximity between them, even with the door separating them both. Kaiba can still hear his pulse thundering in his ears, and he tries to cover them, to block the sound out...but it's everywhere.

He hadn't felt the thirst strongly enough to warrant such a reaction before, but now it's as if someone's raked his throat with sandpaper and his stomach feels as if it's gnawing itself apart for want of that blood.

He forces himself to sit, and his hands remain clamped over his ears as he stares at the door, pupils contracting and dilating wildly as he attempts to bring himself back under his control.

Self-control is the only control that matters in his life since he'd been turned, and feeling so helpless against his instincts, with fangs aching and jaw burning with the need to bite his new hire...Kaiba's more than a little frustrated.

He lets out a strangled snarl that Isono can pick up, and which both of them hope that Yuugi cannot.

"Mister Mutou, are you alright? Please, come this way, let's get you a glass of water," he says quietly, although his grip on the younger man's shoulders feels a little insistent. They really have to go.