His most trusted brother and girlfriend join forces to betray and kill him in the apocalypse → He is reborn before the betrayal → He uses his foreknowledge to plan ahead → The traitors suffer the consequences of their own actions and beg for mercy on their knees
After being reborn, he frantically stockpiles supplies and weapons → When the apocalypse arrives, he has overwhelmingly superior resources → The once-arrogant villains grovel before him for a bite of food → He controls the situation with his resources and remains invincible