wakura yuuki

The titular main protagonist of Mato Seihei no Slave.

He serves as the dorm manager for the Anti-Demon Corps. He was previously a third-year high school student, but enters the Anti-Demon Corps after entering a gate that appeared. During the events of the series, he would eventually become the slave of Uzen Kyouka, whose ability allows him to transform into a beast that grants him superhuman capabilities.

He is a well-built young man with black hair and blue eyes.