Starting on the God-Killing Level Difficulty, My Professional SSS

Article 1 of the laws of the Nine Tribes states that there is no guilt for a superior to torture a subordinate, but a death penalty for a superior to punish a superior. Classes cannot be crossed. Human beings are the tenth class of slaves under the nine tribes. S level is just the black glove of the nine tribes, A level can only serve as the coolies of the nine tribes, and B level and below are the dregs of the garbage. How to counterattack after being reduced to F level? ! What F rating? I don't recognize any of the levels defined by the Nine Tribes! Let me break the oppression of the nine races, and save the fate of the human race. I came to Jiutian Continent just for world nuclear peace! Kill the nine tribes! Kill the gods! Recover the Dragon Kingdom! Unify the nine heavens! Dual careers, different endings! A mechanical pioneer that leads mankind to glory? Or is it the shadow of disaster that leads the nine tribes to destruction? Everything is under my control! Don't be afraid, Nine Clans, I'm here to kill you! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.