Story of Rei Umbre vs. The Worlds

This is the story of the pop-cultural world traveling hero of Grey City named Rei Umbre.

Prologue: The Light and the Darkness
Born from the day his drunken father killed his mother who endured the suffering for twenty months through sheer willpower and endurance, Rei was unknowingly gifted with light and darkness. At the age of 8, after taking enough pain from his abusive father, Rei took his father's shotgun and killed him.

Knowing that the incident was caused by his father's abuse, the police escorted Rei to his Aunt Serenity who adopted him after hearing his mother's death. And throughout school years being bullied he eventually befriended a wise yet physical footballer Gildo.

Then on his 16th birthday, a media mandate named Matt Median who runs the highly popular gladiator show called Gladezone. He offered Rei a chance to be somebody different than his drunken abusive father or the bullies that eventually Gildo won't save him from.

After some thought and later taking the offer, he was injected with a serum that not only lessen his age by one and suppress aging but resists the laws of Fiction so nothing careens out of control during combat.

He was taught in four different martial arts: Jujitsu, Kung-Fu, Krav Maga, and his own martial art Twilightsu which combines and harnesses the light and dark energies within him for offensive and defensive combat as well as creating ki-based projectiles. Wields a customizable sword called Chanbara that can be customized with modellions. And capable of wielding Gladezone weaponry via tempo telecrates placed throughout each world.

And now his adventure begins