I Am a Demon Slayer Walking in the Ming Dynasty

Demons are rampant and causing harm to the world, The Ming Dynasty, a country with hundreds of years of history, was devastated by wind and rain. Countless people died because of demons and disasters, Lu Ming is a demon-slayer who walked in the Ming Dynasty. At the same time, there is an ancient book in his mind that can merge the two exercises into a new one. 'Combined two yellow-level low-grade exercises, and a new exercise appeared, the Xuan-level "God Conferring Technique"! ' 'Combining two Xuan-level low-grade formations, a new formation appears, the Earth-level "Thunder God Art"! ' 'Combining two local-level low-level magical powers, a new magical power appears, the heaven-level "Words and Methods"! ' At the same time, Lu Ming discovered that by constantly hunting monsters, he could obtain monster pills and upgrade ancient books. So, Lu Ming began to kill monsters even more crazily. Lu Ming said that he is a demon slayer walking in the Ming Dynasty, and his wish is... Kill all the monsters and monsters in the world...