I Am a Yin-Yang Master

The world is vast, and there is no shortage of strange things. Every country, every city, even every town and village has countless phenomena that defy explanation. My grandfather was a wandering yin-yang master who traveled from place to place. His entire life was spent dealing with the worlds of yin and yang, ghosts, and monsters. After he died, he left behind a shop that did business with both the living and the dead. I never wanted to take it over, but the wheels of fate pushed me step by step down the path of becoming a yin-yang master, a road with no return...