Tenkai High: rise of Satoru Takashi

17 year old Takashi Satoru watched his parents die, his sister bewitched into a coma like state by a demon not being able to do anything until he is powerful enough to rip out the demon out of her. After the Incident, Takashi is taken his by a man, elite sorcerer and trained the art of sorcery, watch the journey of Takashi Satoru as he grows to take revenge over the ones who sent the demon to kill his parents.