Li Jiayu, a dark summoner who could summon bone dragons, liches, and even the Grim Reaper, is reborn before the apocalypse! The world is shattered, with rifts to the insect realm and abyssal realm opening up, unleashing hordes of insects and corpses upon the Earth. Human civilization is on the brink of collapse! With his mind still pure, Li Jiayu's summons are no longer limited to darkness; he can now summon beings of light! This time, he vows to prevent the tragedy from repeating. He will make amends for his past life!