Quick Transmigration: The Wicked Side Character Drops the Act

What’s an unconventional way to transmigrate into a book? Other people become dashing heroines or pure, lovely white moons, but she’s destined to take on the role of the vicious supporting female lead in every world! But so what if she’s a vicious supporting female lead? She still lives life her own way! She provokes the heroine and beats up the male lead, turning a perfectly good heroine into a major villain! System: “...This isn’t what I wanted!”