I Was a Supporting Character in the Book, but I Became the Protagonist

Traveling through the book to become a supporting character, Li Yun wanted to stay away from the protagonist and the villain, and he didn't want to provoke the heroine. He just wanted to be an ordinary supporting character and survive until the end. Unexpectedly, the female protagonist actually overheard her voice, and even the male protagonist and the villain were eyeing him. In order to survive, Li Yun had no choice but to suddenly launch a resistance, but he had no choice but to become the protagonist. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.