Shen Yi died unexpectedly and was chosen by the divine beast Qiu Bei, who governs time and space, to become the Demon King's daughter and complete a mission to reform a villain. Her Demon King father and villainous brothers are all twisted, obsessive, deranged, bloodthirsty, brutal yanderes...
Shen Yi: "Can I beat my five rebellious brothers into submission?"
Divine beast Qiu Bei: "Be good. Aside from your beauty, you have no demonic power at all. You're useless, so pursue them on the sly and don't get reckless yet."
After a round of underhanded conquest...
Bloodthirsty Demon King: "Daughter, whatever you want, I'll take it for you!"
Yandere second brother: "Little sister, you're all the world needs. I'll destroy everything else."
Puppy-like fourth brother: "Little sister, you promised you'd stay with me forever, remember?"
Sharp-tongued third brother: "All a useless girl like you needs to do is stand behind me and let me protect you."
Smiling tiger eldest brother: "It's fine. You only touched a single hair on my sister's head. Just trade that hand for it."
Icy fifth brother: "If my sister wants you dead, you'll die. If she wants you alive, then you can live."
Shen Yi: "Can I conquer the male lead?"
Divine beast Qiu Bei: "Sure. Sacrifice your beloved to the heavens, and your demonic power will know no bounds."
Shen Yi: "???"
