Backstab

Kageyama is sent to another world by an unfortunate event, and is forced to survive by training in hopes to defeat the demon king. However, as he finally came face to face with the lord of the underworld, he is shocked to find out the identity of his nemesis...Kageyama is sent to another world by an unfortunate event, and is forced to survive by training in hopes to defeat the demon king. However, as he finally came face to face with the lord of the underworld, he is shocked to find out the identity of his nemesis...Kageyama is sent to another world by an unfortunate event, and is forced to survive by training in hopes to defeat the demon king. However, as he finally came face to face with the lord of the underworld, he is shocked to find out the identity of his nemesis...