Warhammer 40K: I, Horus, Am Truly Loyal

If you want to say when the story of 40K Darkness begins, it should be the Horus Heresy. If I had to give a specific event, it would start when the Emperor was seriously injured on the Vengeful Spirit and had to sit on the Golden Throne all the time. David believed this view deeply, because after being killed by society, he time-traveled into the body of Horus. "I'd better die..." But he soon regained consciousness and determined to put things right. Are you kidding? I am also a Yunmai after all. How can I know when something will happen? Thus, David, who was not blessed by Tzeentch but was almost omniscient, began this absurd life. But things are unpredictable, and David's time travel disrupted the timeline of the Warhammer universe... … Years later, Tyra. David led ten of the Primarchs and their descendants, and stopped in low-Earth orbit of Terra, just as he had done before. David smiled bitterly, what is this, a second rebellion? "Brother Luojia, maybe your belief at the beginning was really right..."