At least getting the information proved to be quite easy. Playing a doctor really helps.

Ren does his best to play along and try to show a friendly face so not to cause any suspicion. He only really knows some first aid and he has no actual experience as a doctor, but he will try his best.

"Don't worry, she is in good hands."

He moves over to the young girl. He can see that the young girl seems awake and seems a bit startled by the sudden appearance of Ren.

"It's alright, young lady. I'm Dr. Jekyll and I've come to check up on you. I hear you feel some pain? Where does it hurt?"

Well Ren might be busy for a while playing doctor. Kazuma would be free to do what he wants.