赤坂丽《牙医姐妹》

Originally, to break through the heavenly realm and advance to the realm of life and death, one needed to leave the Xuanhuang Pearl, then look for the pill of the realm of life and death, and then seek opportunities for breakthrough. But he fell into a hallucination and entered an eighty-one-story tower. No, in addition to the eighty-first floor, this tower also had a golden door leading to the starry sky....