I'm the Protagonist in a Wish-Fulfillment Novel

On his way home from work, Su Lin encounters a knife-wielding criminal attacking someone. He is stabbed while trying to save the victim. Just before dying, he binds to a System and transmigrates into various wish-fulfillment novel worlds to rewrite their plots.

Readers have complained too much about those harem power fantasies, so their consciousnesses gave rise to a System. Su Lin must rewrite the endings of stories in various novels to earn rewards and be reborn before his death.

Theme: I haven't thought of one yet