If you were an omnipotent being with the power to create entire worlds from nothing, how many would you make? Sometimes things can get boring with only one, you know? When God gets bored with his greatest creation what does he do? He reincarnates a boring human from Earth in it of course!
Magnum Opus follows the story of a reincarnate who is brought to God's greatest creation, his magnum opus. It's a story about magic and adventure, what will this reincarnate do in a world full of magic? Follow the reincarnate as they navigate a new world in hopes of creating their own great work of magic.