Gundam UC: Space Domination Begins from Failure

He traveled through time and became Karma's twin brother, and was childhood playmates with Char's brother and sister. The system was activated, and he tried to use the system to prevent the death of Gene Daken and promote the marriage between the two families. However, Daken was still assassinated, and the protagonist also suffered a backlash and nearly died. Knowing that the system could not reverse the results, he gave up this function. He turns to secretly investigating the cause of Daken's death. Char returns under a pseudonym, and the protagonist presents evidence to prove that there is another mastermind (Kilian is indirectly involved). Char's revenge target is Killian. When the One Year War broke out, the protagonist used the system drawings to improve his strength, but he opposed Kilian's atrocities and broke with Kilian and was placed under house arrest. Under Char's care, Karma was killed by the White Fortress because of his own intrusion. The death of his brother and Zeon's cruelty left the protagonist disheartened, and his goal changed from changing the war to gathering strength and saving lives. After the defeat, he led his loyal subordinates and technical personnel to evacuate, and used the system blueprints to secretly develop and build a Neo Zeon fleet that transcended the times. In 0088, the protagonist returns and uses his generational advantage to sweep away the old forces in the universe. He consolidated his rule, repaired relations with colonial satellites, and responded to internal and external challenges. In 0093, he joined forces with Char to end the federal military power. In 0096, the "Laplace Box" and the truth about New Humanity were used to completely destroy the Federation and establish the rule of Neo Zeon.