Supporting the Beautiful, Strong, and Tragic Villainess [Quick Transmigration]

After Shen Yu, a max-level powerhouse, died, he was bound to a Supporting Female Character Assistance System. His mission was to stand up for beautiful, strong, and tragic supporting heroines, so they wouldn't become stepping stones for the protagonists. With a powerhouse backing them, the supporting heroines in the books all went on strike. The infamous supporting actress in an entertainment-industry novel: I'm quitting show business. I want to do scientific research. The evil supporting heroine in a xianxia novel: I'll sever all romantic ties and devote my life to the sword. The child bride in a tragic romance: Go chase your unrequited love. I'm going to defend my country! Theme: The male lead advances his country through science and technology, helping each small world climb the tech tree.