Invasion of All Realms: Build the Mark Mecha at the Beginning

Not the Holy MotherDecisive KillingStrong and Refreshing Article All worlds are invaded, and the end of the world is coming. All kinds of monsters, monsters, and terrifying creatures descend on Blue Star. Overnight, the human race around the world became food for countless monsters and was on the verge of extinction! Li Yuan, who has struggled for many years in the apocalypse, was reborn and returned to the week before the invasion of the world. With many years of survival experience in the apocalypse, Li Yuan decided to start building a Mark mecha! Amid the frenzy of alien invasions from all realms, this time, he will lead the human race out of a glorious future. ... PS: The introduction is weak, please move to the main text to read.