Calim grew up in the streets until he was noticed by a teacher of a famous Sword fighting school. He was sponsored into the school and learned the blending of magic and sword fighting from the teachers.
He sparred many times with Henri, where they acquired a friendly rivalry. He heard Henry talk about the RHC many times, and not to be outdone, applied also.
Because of his time on the streets Calim is more willing to overlook the smaller crimes, so that he can go after the ones running the show. Because of this the ones unaffiliated with specific gangs will sometimes pass information on to him in hopes of getting the more violent gangs disbanded.