Fantasy: I Have an Invincible Strategy System

Traveling to a fantasy world, Ye Huang discovered that this world turned out to be a novel he had written. He is not the protagonist, not the villain, he is just a sidekick who is hostile at the beginning. He does not please both sides and is killed when he appears. It can be said that he survives in the cracks! But fortunately, there is an invincible strategy system. You only need to strategy the characters in the novel. When the trust level with the characters changes, you can become stronger and invincible... Looking at it this way, it is a little exciting! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.