As if a buddy system would be helpful. Mukuro had to keep from showing his disdain for the idea. He nodded, "I have some self-defense training." It was a vague answer, but there were several things left better unsaid. While it may be more useful to explain himself as a skilled fighter, it was not terribly helpful in the long run.

"Is it not possible to just stay in your room until the night is over?" that seemed like a relatively logical explanation to him.