Twins Conquering Demons

(Not invincible, not harem, not brainless, not systematic, not time-travelling, book lovers who like slow pace may wish to check it out~) Throughout the ages, death and life have been eternal topics. Mortals yearn for the secret of immortality of immortals and gods, while the dead seek the meaning of death by ghosts and gods. Is death the end? When the passing body comes back to the world with the memory she gave it, what will be waiting for it? The sky and the earth are vast, the sun and the moon are bright, fighting for the eight wastelands, building immortality, a skeleton body, a tiger-head knife, the skeleton has no intention of recalling it, offering sacrifices to the souls of the dead under the tiger-head knife, experiencing injustices in the world, what should I fear as a human being?