My Practice Is Blessed a Thousand Times

Entering a haunted house to play, you are transported to a world where monsters reign supreme. I didn't expect that all I saw were real monsters and monsters! As a result, he accidentally passed the examination of the Demon Slayer Department of the Dragon Kingdom and became a demon slayer. Practice? Kill demons? To slay demons? Kill ghosts? Exorcism? This world is very dangerous, but when you meet me, you are in danger! I have the blessing of a thousand times the speed of my practice, and I can destroy all demons and monsters with one blow.