In the bustling city, there is a mysterious place called Hongchen Teahouse. This teahouse looks like an ordinary teahouse from the outside, but it hides an unknown secret inside. Legend has it that the Hongchen Teahouse was founded by an expert who was proficient in the ways of yin and yang and could communicate between the yin and yang worlds. The business of the teahouse is also quite strange. It deals with living people during the day and dead people at night.
