All People Transferred: The Weakest Necromancer? Ten Thousand Armies Crush the Gods

The game world descends into reality, and humanity enters an era of all-people transfer. Transmigrating, Jiang Yan thought he was the son of heaven and should be able to awaken an SSS-rank talent. But on the day of awakening, he only awakened a rankless necromancer. Summoning the undead and improving his strength both require the cost of lifespan. Thinking he had no hope of reaching a high rank, the legion system descended, allowing him to kill enemies to gain lifespan, and thus establish his own undead army. Purgatory dungeon? Crush! Ancient beasts? Still crush! He's not afraid of the enemy being too strong, he's only afraid that his legion isn't strong enough. When a hundred thousand undead armies gather, even gods, can be fought.