I Was Promised a Crossover Anime Vacation, So Why Did I End Up in a Literary Mashup?

Ning Fan had only wanted to spend a vacation in a world where anime series crossed over, but after the System pulled a series of stunts, it dumped him into a bizarre world called "A Chaotic Crossover Stew of Web Novels." From the start, he landed in the role of the real young master who was about to return to a wealthy family, while a fake young master stood in his place. Ning Fan figured that since he couldn't fight it, he might as well quietly enjoy it. But he had drastically underestimated just how absurd this world was! Could someone tell him why the fake young master who was always picking fights with him turned into a succubus at night?! And why did his bargain-bin dad turn into a white-haired loli magical girl?!