Kamui is the younger sister to Corrin, who resides at the very prestigious School (Smash Academia) She has taken it upon herself to be associated with Ryu's Dojo in order to better herself in the chance to impress her older brother Corrin. For Kamui, I want someone who can pull off a proper sounding voice with her but no accent, she speaks well mannered and she's very strict.
If not then sounding close to the original voice actor is fine as well.