Monster Killing Record

My name is Yu Yan, and I was an ordinary boy from a mountain village. That night, the ancient demon destroyed my village. My relatives died tragically, my sister was captured, and I became the only half-demon in the world. I joined the Demon Suppression Division and vowed to kill all the demons in the world. When the cruel truth was revealed in front of me, from now on, my sword could kill both monsters and evildoers!