The Ultimate Physician Mitsudo Boryumu is an awkward individual. He tries his best to be friendly and relate to his classmates, but unfortunately fails each time. The one thing he excels at is academics, he’s a known tutor at his old school and some students would refer to him as a teachers pet. 

Due to this relation to the teachers, he was allowed to bring his pet lizard Xenu to school, and because of that he is now attached to having his dear friend with him at all times. Keihaku, although finding him a little strange, enjoys spending time with him.

(Make sure he sounds awkward, like he has trouble expressing his emotions and has trouble relating to his classmates, deeper range)