Byakko turned when Tsuzuki grabbed him, his angry expression instantly melting away as he looked at his master, turning into a gentle smile. He wrapped his arms around the shinigami, hugging him close comfortingly. He hated seeing Tsuzuki look upset or worried and now he was looking both. He petted Tsuzuki's hair lightly, concern appearing in his expression as that bastard doctor was mentioned.

He turned back to Tatsumi, lips drawn back over white teeth in something close to a snarl. He wasn't happy at all. How dare they hurt Tsuzuki?! Maybe Tatsumi's words made sense, but at the moment, all he could feel was his master's hurt and upset, his worry. "You hurt him!" he growled. That was really all that mattered here and now. "Tell me where Muraki is and I'll kill him!" And then he'd never have to feel Tsuzuki's despair like that again, never have to feel him try to kill himself.