Invincible Undead: Starting by Taking Over the School Beauty’s Useless Class

[Class changes for everyone + lighthearted + ruthless and decisive + merciless face-slapping + multiple women + older sisters + invincible] Games descended into reality, Abyssal monsters ran rampant, and the whole world entered an era of class changes for everyone! At the class-change ceremony, transmigrator Lin Ran looked at his one and only bound hidden talent, [Undead Evolution], and instantly made the right choice! He had originally awakened the dazzling S-rank hidden class, “Blood Earl,” but in front of everyone, he voluntarily abandoned it and chose the class the entire internet agreed was good-for-nothing: Necromancer! With the passage to the undead realm collapsed, Necromancers could only summon flimsy, fragile skeletons, so the class was branded a useless SSS-rank class. The whole school mocked him! A genius had fallen from grace! His status-conscious fiancée, the campus belle, turned on him on the spot, while the Lin family threw down a document severing ties and cut him off! “A good-for-nothing class? Cannon fodder?” Lin Ran gave a cold laugh. What the world didn't know was that his skeletons had no upper limit and could evolve without end! Ordinary skeletons too fragile? Evolve! Their base stats immediately surpassed those of Abyssal bosses at the same level, and one slash could kill an elite monster! Not enough summons? Raise an unlimited army! A hundred, ten thousand, a hundred thousand... One man was an entire undead apocalypse! Before long, the Abyssal Calamity descended! Countless high-level class changers fell into despair and were driven back again and again. Just as humanity's defenses were about to collapse, Lin Ran strode alone into the Abyss, staff in hand! Behind him marched an endless army of god-tier undead, clad in heavy armor and blotting out the sky!