GENESIS

This is the inspiration for Warhammer 40k, Titanfall, Halo, Gate anime, and Fire Emblem: Three Houses

Within the large planet known as the "Trinity," there existed magic, different species, mythical creatures, and medieval times created by the gods of this world and worshipped by the mortals. Despite their amazing power, these gods had their flaws with their desires for power. This desire and corruption occurred from unknown means, which caused them to go mad and seek to gain power and bring chaos. But little only wanted peace like the god of magic "Genesis." This caused a war between all the gods, including the people that lived on the planet, This war was so great it started making some species like the Elves, Dragons, Orcs, etc. extinct. Only Genesis was the last living being go witness the world she and her fellow brothers and sisters create fall to ruin. And as a result, Genesis gave up on the world. Deciding to fall into a deep sleep, but after millions of years of slumber, she finds herself awakened to a world of a new war against other factions across the galaxy. Humanity fighting back with technology so advanced, it surpassed magic. Despite having incredible weapons, their goal is to protect their worlds against the alien forces that threaten the galaxy. However, such threats will multiply and become the new to the infinite galaxy.