Hey, You're Just a Supporting Female Character!

What happens when a transmigrated sweet-and-innocent heroine's script meets a reborn femme fatale? Jiang Xiaobai watches as Jiang Mumu transforms from a busty, brainless female supporting character into a humanoid weapon who can beat up the White-Clad Immortal of the Southern Mountains and trample the mermaid prince of the Southern Sea. Is this a distortion of human nature or a collapse of morality? A female supporting character whose mission is to steal the heroine away from the cannon-fodder male lead proves with her own strength that when a villainous supporting character who has spent ten thousand years focusing on stealing men learns to speak through her own abilities... men don't matter anymore!

Bottom, cultivation setting: a modern transmigrated bottom who seems sweet but is actually two-faced, paired with an ancient reborn top who is a humanoid weapon.