Writer's System

(Gamer x Multi-Crossover)
Issei Hyoudou declined going on a date with that girl, after all, they had just met that day, but that decision would completely change the flow of the story, awakening a twisted system that mends reality to assure he was still a card in play.

"Due to the achievement of changing the story's plot, you have activated the Writer's System."
"You have obtained new traits"
"You have lost the trait (Boosted Gear)"

The identity of the world he knew of would completely shatter as this system rebuilds it with shards of other worlds.