My Years Guarding the Worlds of Yin and Yang

When my grandfather decided to pass the book tower on to me, the whole world of the yin and the supernatural panicked. I couldn't understand it. It was just a rundown book tower that couldn't make much money, so why did it cause such a huge commotion? My grandfather even lost his life, dying a gruesome death. Only later, when I became the owner of the bookstore, did I learn the truth. The bookstore has eighteen floors, each one hiding its own mysteries. Some warned me not to enter a yin house, lest I be denied reincarnation. But I insist on taking my seat atop the book tower and managing all affairs between the worlds of yin and yang.