"Why wouldn't I be? He and I are of similar origins. Call it a feeling of kinship if you will. I would simply like to meet him is all."

Almost honest... sort of. There were a few things he needed to settle with this 'Kaito imposter', one of them being Saguru's safety. He didn't care what else that thing went on a rampage on, but he needed Saguru's body in top shape at all times in case of an emergency. The other being the fact that this one also is an experiment. While Mukuro is hardly capable of feeling something as sentimental as kinship, there is a bit of a tie there. Perhaps it is from his lack of contact with Ken and Chikusa, but a new member to the once infamous Kokuyo gang was quite an exciting idea.

And perhaps this one would be able to tell him more about Saguru...