I Use Martial Arts to Conquer This World

The protagonist unexpectedly transmigrates to a world overrun by evil spirits, where human lives are as worthless as grass. With a status panel that lets him modify martial arts without limit, he tempers his physical body to sainthood and crushes every evil in the world.

"Evil spirits are hard to kill?"

"Modify the Thunderfire Demon-Subduing Art to its absolute limit!"

The power of thunder and fire reaches heaven and earth, destroying all evil spirits!

"An evil spirit horde is coming. Will humanity be wiped out?"

The protagonist opens his status panel and directly modifies the supreme martial arts, using his heaven-reaching cultivation to suppress the ages!