The Vow of Interstellar Supremacy

[Aelric Drakonis was an unfortunate young man who didn't have many things going for him, on the contrary, he was someone who was bullied and mistreated by everyone around him. There was no salvation, no opportunity to reverse his circumstances to live a life he could call that of a human.

No, what he was presented with was ultimate despair, one that drowned and suffocated the young man who was barely an adult, and made him take a stupid step, one that nobody in the world should be forced to take, and such was the opinion of the entity that overlooked reincarnation.

Aelric was given a chance, an opportunity, one that he had never been presented with throughout his short yet painful life, and when it finally came to him, he gritted his teeth and decided to follow his heart for the first time.

"I will never let anyone look down on me ever again, I will become an existence that will reign supreme throughout the universe."

Aelric's words thundered and resonated with the entity, and out of sympathy and hope, it bestowed upon him blessings to aid in his conquest.

Follow Aelric on his journey from the countryside of Lyraxia Prime to the interstellar supremacy he so desperately desires.]

And so went the summary of 'The Vow of Interstellar Supremacy,' my favorite book, so how in the hell have I managed to enter the book, and as a minor early-stage antagonist at that?