Poverty-stricken Daguzi encounters a child - Mantou - floating downstream at the river bank, he decides to take him by his side as his son, with compassion and affection.

Fifty years ago, the world was suddenly invaded by "Hundun". Murong Qiong founded the Demon Sect, but was still unable to defeat "Hundun". God Messenger Yi Zhihua came and taught them the demonization skill, helping them defeat "Hundun". After God Messenger left, the demonization skill was out of control. Murong Qiong felt disappointed and retired. His subordinate Yu Huabing took the opportunity to take over his position and improved the skill, creating an egoistic era full of primordial Qi, thus a prosperous world of martial arts. However, the consequence is that all martial artists have become "overworked monsters". A young ambitious man named Dongfang Sheng finds Murong Qiong in GoWest restaurant, and wants him to restore the glory of the world of martial arts. This is the start of the funny story.