Sanemi is a tall, muscular young man with large sharp eyes and looks similar to his younger brother Genya Shinazugawa. He has short spikey white hair and pale purple eyes, and he wears the teacher uniform with his shirt unbuttoned showing his many scars on his chest and face. Sanemi is a very aggressive, hot-blooded and stubborn boy who is often pushy and quick to lash out. Can control himself. Trying to save his alive students despite being cold strict and rude. Cold and emotionless yet strict.