Back from the Abyss: I Became Their Nightmare

The true heir is buried alive by the fake heir. Consumed by resentment, his soul sacrifices itself, and a vengeful spirit takes over his body, vowing to get justice for him. He storms into the Lu family banquet, publicly reveals that he is the real heir and exposes three years of the family's coldness and favoritism before cutting ties with them. Afterwards his eldest sister discovers the scars covering his body and tries to hold on to him, but it is too late. Again and again he exposes the fake heir's schemes and strips away his mask, until the impostor's crimes come to light and the law punishes him. The Lu family is left with regret, the original soul bids him a tender farewell, and he finally begins a new life.