Becoming a saint begins with apprenticing under the last martial arts champion.

In the third year of the Republic of China, the old regime collapsed, and warlords carved up the land. Internally, there was conflict between the north and south; externally, foreign villains coveted the territory. Guns, weapons, demons... Hong Kong, a small place, became a haven due to its location. ...Lu Changqing's father went south to make a living, but offended the local martial arts community by challenging a martial arts school. He was then framed by a villain and betrayed by his own disciple, who sold the school to foreigners to cultivate opium. With nowhere else to turn, he became the disciple of the last martial arts champion of the previous dynasty, and with the help of a Tai Chi diagram that could enhance his skills, he managed to gain a foothold in the chaotic world. ...On a rainy night, a torrential downpour. Lu Changqing slowly pulled his hands from the three-meter-tall, fanged, winged monster in front of him. A flash of lightning illuminated the bloodstains washed away by the rain on his arms. He looked around at the many foreigners surrounding him, their faces filled with fear, hesitant to approach. "Having killed these remnants of demons you've nurtured for nearly a hundred years, my celestial demon body should now be complete..." "Congratulations, you'll be able to witness my strongest form before you die."