Killing Bites Vol. 1

College student Yuuya Nomoto’s world flips upside down when he unknowingly helps his friends kidnap a high school girl named Hitomi Uzaki and ends up the sole survivor after she brutally kills them all. His day gets even weirder when he sees her transform into a beast and battle a monster at an abandoned facility with his life on the line. Turns out she’s a “Brute,” a superpowered human-animal hybrid, and part of an underground fight club in which large corporations bet huge sums on Brute fights called Killing Bites. Even worse for Yuuya, he is now embroiled in a secret proxy war between them with control of the economy at stake, and only Hitomi can protect him!
Notice: This manga is written in Japanese.