Trolling the Protagonist as the system

Qi Song reincarnates into a system and is forced to help the protagonist of the story along the story. When he fulfills his quota of 100 stories, he will be granted 1 wish. Seeing so many main characters act like an idiot and be arrogant made Qi Song hate his life having to clean up their mess and decided to just troll the main characters as a outlet from hundred of years of imprisonment.

Note: Literally just writing whatever comes to mind. More of a slice of life novel