I am just an NPC ,but I rewrite the story

After a death in his own world, an individual awakens within another’s narrative, not as a protagonist or antagonist, but as an unnoticed NPC. Initially feeling powerless, he discovers an ability to subtly influence events through small actions like leaving notes, offering hints, or repositioning objects. These seemingly minor nudges have significant consequences, altering plot outcomes, preserving lives, and changing the destinies of various characters. However, the story itself is a dynamic entity that actively resists such interference. Pushing too hard invites accidents, unfavorable plot twists, and looming disasters. Therefore, the protagonist must tread carefully, meticulously studying the world and manipulating events from the periphery. He guides heroines, heroes, and supporting characters from the shadows, employing an indirect strategy focused on survival and subtle alteration. This unseen force aims to prove that even a background player can become the architect of a rewritten tale.