Brother and Sister Transmigrate to the 1970S and Flip the Table on Their Awful Grandma

(Sisters and brother transmigrate into a book + period setting + chaotic antics + rugged man + golden finger) When they opened their eyes, Yu Jiao, the most hated person in the post-apocalyptic world, and her younger brother had transmigrated into a book. They'd landed in a period novel with a ridiculous, melodramatic plot. Yu Jiao became the number-one villainess, while her younger brother, Yu Heng, became the number-one villain. The siblings were both textbook short-lived villains. Yu Jiao, who had three types of supernatural abilities: “...” Who cares if we're villains? We're definitely not the ones who'll die young. Besides, just thinking about getting to act crazy somewhere new was enough to make her excitement well up from deep inside. From then on, the siblings spent their days acting outrageously wherever they went and practicing their acting skills at every turn. If someone was a shameless bully, they'd kick them until they dropped. If someone was cruel and calculating, they'd turn the tables on them when they least expected it. If some tiresome old hypocrite tried to play innocent, she'd act so well she'd make them cry. No matter what, the siblings never let anyone take advantage of them. The nastiest people in town started giving them a wide berth, shouting, “Don't come any closer!” The original heroine, reborn, watched Yu Jiao, who was arrogant, brazen, and a shameless schemer, tormenting the protagonists until they were practically dead. Her face went deathly pale. She remembered that in her previous life, Yu Jiao had been quiet and dull, a total mouse. What on earth had changed?