I Really Only Want to Be an Extra

All the characters are villains + Twists + Two Female Leads + Redemption + Pure Satisfaction! I transmigrated into a book! Did I become the fated male lead, follow the plot, and rule the world? No! Did I become the villainous male supporting character, ready to turn the tables and write my own story? Also no... I transmigrated into... a minor bodyguard for one of the female leads, just an extra! My mission... is to keep my head down and make it to the ending without drawing attention! But... why is the female lead coming to find me on her own? The story... is gradually taking a strange turn.