[Quick transmigration + tool character + cannon-fodder supporting heroine + feel-good story]
Only after Hua Yan died did she discover that she was a cannon-fodder supporting heroine, and nothing more than a tool character!
No, she wouldn't accept that! She refused to be a tool character. She would be the heroine! She was the heroine!
After binding herself to the Heroine System, Hua Yan starts snatching the heroine's resources, her men, and her status in every world. If it belongs to the heroine, she takes it, because she is the heroine!
P.S. Absolutely one-on-one. The male lead is the same person from beginning to end. However, the male lead before the heroine arrives in each world isn't the same person as the male lead after she arrives, so the “male lead's” actions before her arrival have nothing to do with the real male lead.
