In the sky, there is a world of great conflict. The earth is revived, and the aura is awakened. In the city, human beings have become unparalleled. In the mountains and forests, monsters and ghosts roam the wilderness. Edge! College student Lin Fan got the book of weakness. In order to survive, he had to embark on the road of fighting. He found the opponent's weak point, the buttocks, and attacking the buttocks would cause tons of damage! Discovered the opponent's weakness, he is gay! Verbally attack the opponent , can cause the opponent's defense to collapse. The opponent's weakness is broken, and the weakness crystal can be obtained? What is the use of this weakness crystal? Enter the mysterious space of the book of weakness, and what secrets exist in that space? Open the "Book of Weakness", Tell you the answer!