At the same time, this Great Crusade was also a journey to find their kin. Twenty Primarchs were scattered across the galaxy by the Unholy Gods. After being retrieved one by one by the Emperor, they were gifted with corresponding Space Marine Legions, to play various roles in the Imperium's future.

Data concerning the II and XI Legions, and their two Primarchs, were erased during the Great Crusade. The exact reason for this is unknown, and even the Primarchs themselves remain shrouded in secrecy. Consequently, by the end of the Great Crusade, the Imperium had only eighteen Legions Astartes.

Among them, Horus was the first Primarch to be found. The Emperor bestowed upon Horus the title of "Warmaster" and announced that from now on, 18 Primarchs would lead the Imperial army and demonstrate their outstanding leadership. The Emperor himself returned to Earth to begin repairing the Golden Throne and formulating his next plan.

Phase Six: The Horus Heresy. Horus, Warmaster of the Empire and Primarch of the Luna Wolves, was corrupted by the Chaos forces of the Warp and fell into the arms of darkness, launching a war of betrayal against the Emperor. Half of the Space Marine Legions, countless Imperial soldiers, and members of the Mechanicum succumbed to his ambitions.

The traitors first engaged in a bloody conflict with their brethren who remained loyal to the Imperium. With the loyalists within the Traitor Legions slain or corrupted, they set their sights on the entire Imperium of Man. Thus, the entire Imperium was plunged into a raging war. The Iron Hands, Salamanders, and Raven Guard, three Legions loyal to the Emperor, were severely damaged by the sudden betrayal. The Ultramarines, Dark Angels, and Space Wolves fled Terra, unable to return. On Mars, the Mechanicus and its traitors, each commanding vast legions of Titans, battled for control of the red planet. Once again, humanity's newly recovered precious knowledge was destroyed in the flames of war.

At the end of the Heresy, the rebels finally reached Holy Terra and, chanting "Death to the False Emperor," began besieging the Emperor's palace. This tragic outcome resulted in the Emperor himself slaying Horus, though he himself was gravely wounded. He was placed in a golden coffin, frozen in time, upon the sacred Golden Throne. To this day, the era of the Emperor and his Primarchs has come to an end, but humanity still longs for the Emperor's reawakening. Many signs indicate that the Emperor's spirit still guides humanity through the coffin...

The subtitles appeared, and the film about the introduction of the human empire slowly came to an end.

Inside the theater, the lights gradually brightened. A group of Astra Militarum soldiers and Astartes yawned, their expressions familiar. The Mechanicus and Sisters of Battle were filled with excitement, praying to the Emperor throughout the entire performance with unparalleled piety. A group of cats, dogs, and Furies ate popcorn, watching with gusto. A pair of Stormtroopers nearby were discussing the plot and its plausibility.

Chang Wei had also forced them to come over to watch the movie. At least to give some of the crew members who didn't understand Warhammer 40,000 a little understanding. Otherwise, if they spoke carelessly in the human empire, they would be dragged away or killed by the Inquisition with "disloyalty" or "heretic" accusations. That would be a big problem.

If it gets even worse and you're turned into a servitor, you'll become a Muggle, right?

Therefore, it is necessary to let them know the relevant information.

Chang Wei looked at the time and saw that there was only one day left before the mission started!