Trienna : Litany of poisons

Ren, a soul reincarnated onto the magical Trienna continent, finds himself the heir to immense wealth, yet cursed by a constitution that rejects the world's prevalent magic. In a society where strength dictates status and mages wield power through nine intricate circles, his inability to manipulate mana renders him an outcast, despite his family's prestige. Driven by a cold determination to defy his fate, Ren invests his fortune into dangerous expeditions, hiring skilled mercenaries to plumb the depths of forgotten ancient ruins for an answer. Within a crumbling crypt, he unearths an ancient grimoire: the "Litany of Poisons." This forbidden text reveals his unique "myriads poisons body" can only interact with raw, pure mana through the arcane arts, a path entirely separate from conventional magic. With this newfound, perilous knowledge and the potent techniques contained within the Litany, Ren must now forge his own formidable path. He will navigate a treacherous world that despises weakness and redefine strength itself, not with magic, but through the unparalleled mastery of poisons and arcane power, carving out an empire of his own.