Martial Inheritance

A boy named Shi Shan along with his little sister were offered as sacrifice to a demon that has been haunting their village. They were rescued by a martial artist who exorcise demons. He took the siblings in as his disciples and taught them the art of cultivation and about the demons that dwell in this world.

Original Webtoon

Official English:
Webnovel (Dropped), Webcomics (Dropped), HoneyToon