MTL - Guide to Raising a Supporting Male Lead

When she inexplicably came into this world, the novel’s supporting male lead had yet to become the future boss of the underworld who could overturn the heavens. For now, the supporting male lead is only a frail young boy, a defenseless little chick in a world where the plot of the novel remains unfinished. Meanwhile, Lin Xin became the standard passerby who only wished to stay away from the budding plot. What sort of supernatural event is this? Transmigration Deity, come out! I promise I won’t beat you to death… - Description from Novelupdates