However Riz holds a darker side by being the one who mistakenly killed Tem. He considered Tem to be one of his closest friends with it being hinted that he was somewhat romantically interested in him. However due to Bears aggressive nature and staggering size they must take medication to reduce their strength but these come with awful side affects making Riz miserable and lonely. After Tem was kind to Riz he thought could he go without taking his medication yet by doing so causing him to accidentally kill Tem. After he realized what he has done by eating Tem he developed a taste for killing causing him to slowly lose his sanity developing a twisted mentally where he believes Tem wanted to be eaten and eating Legoshi will cause them to become friends. Riz goes to the point where he’s willingly to kill anyone who’s finds about what he did.