Theo-Adam was a unicorn under the wings of Princess Celestia as she took him in after rescuing him from an enslaved fate at a young age. As he studied and worked hard, Twilight Sparkle came along and suddenly all of the alicorn's attention was on her instead of him. Every breakthrough he achieved, every discovery ever made by him, Twilight Sparkle always got the attention from Princess Celestia and it was never him. Soon enough, the final strings snapped in Theo.

The wedding between Princess Cadance and Shining Armor was happening and as usual, Twilight and her friends hardly acknowledged him besides Fluttershy and Pinkie Pie. At first, Twilight noticed Cadance was a little off but shrugged it off like it was nothing, just last minute jitters but Theo wasn't fooled by this. He investigated and saw that she was a fraud and interrupted the practice ceremony to tell them but nopony believed him and he was shunned by Shining Armor, The Mane Six and his own teacher, Princess Celestia.

Now heartbroken and nothing to live for, Theo was about to kill himself before a deity known as Stan Lee appears before him and offers the chance of a new life in a world full of superpowered beings... where he can live his own story.... as Black Adam.