He takes a little bit of pity on her, sensing her discomfort. "Mx. Devero is fine, if you need to be more formal."

Even a mention of the priest makes his face soften a little. "Koumyou Sanzo," he tells her, "or just Sanzo, since he's the only one on the train." That could, theoretically, change someday, but for now, Sanzo alone is indicative enough.