Necromancer: I Am the Calamity!

Game rules have descended upon reality, completely overturning the laws of the world. Humanity has entered an era where everyone can change classes. Only by becoming a class-changer and constantly leveling up can people survive and grow stronger in this world fraught with danger. Su Mo unexpectedly transmigrates into the body of a boy with the same name in Linjiang City, J Province, in the Divine State Empire. At the crucial moment of his class change, he awakens the one-of-a-kind hidden class: Necromancer. While everyone else summons mighty combat pets, Su Mo's soulbound equipment is nothing but a battered scythe that looks covered in rust. His first summon is a frail skeleton, prompting everyone to laugh. But no one knows that his spiritual power is a staggering level 200, and that he possesses the heaven-defying SSS-rank talent skill, "Lord of the Undead, Infinite Summons!" It lets him disregard the strength of a soul and the time since its death, turning everything from the lingering souls of ancient demon gods to the spirits of the newly dead into utterly obedient servants. As Su Mo continues to summon, his skeletons grow from a feeble army into a mighty force that blots out the sky. In the face of everyone's doubts and mockery, he uses the powerful unsealing properties of the Scythe of Reincarnation to continually strengthen his summons. In this world overrun by monsters and riddled with secret realms and dungeons, Su Mo sits high upon a throne of bones and leads his undying soldiers through the boundary between life and death. He becomes a fearsome calamity and begins his own legend.