After I Transmigrated Into a Book, I Somehow Got Lucky and Became Empress

Transmigrate into a book + two equally powerful leads + sweet romance + household intrigue + palace intrigue Bai Lingwei has transmigrated into the body of a cannon-fodder female character. But that's not the point. She's only twelve years old! What can a little kid possibly do? Well, you're wrong. Watch her grow, step by step. “Bai Lingling, you've stolen my identity for more than ten years. It's time to give it back!” “Bai Lingwei, don't think I don't know you're an oddity. You were never supposed to exist, but now you've appeared and ruined my smooth, carefree life. I want you dead!” I'm new to writing, so please forgive me if it's not very good.