My F-Rank Sagea is Secretly an EX-Rank Calamity

At seventeen, your soul is measured, bound, and branded. The Sagea you summon dictates your bloodline, your status, and your survival. Asher Flynn was engineered to be the crown jewel of the elite. Instead, a cosmic anomaly rips his ritual open two years too early, anchoring his soul to a pathetic, F-rank creature that shouldn't even exist. ​Overnight, he becomes the laughingstock of the elites. Shoved into the bottom-tier Umbrax Faction, labeled a “Clever Fraud,” and mocked by the school's prodigies, the entire world expects him to crawl into a corner and fail. ​They think he’s powerless. They think he’s a joke. What they don’t see is the bleeding crimson text burned into Asher’s eyes: ​[System Warning: The seal on the Primordial Core is eroding.] [Current Threat Level: EX-Rank Calamity.] [Time Remaining Until Manifestation: Counting down...] ​With a hidden system status window, a brilliant strategic mind, and an apocalyptic force masquerading as a pet, Asher is perfectly happy playing the weak underdog. But when the arrogant elites push too far, they’ll realize too late that the academy's biggest fraud is actually its greatest nightmare. ​Tags: Smart MC • F-to-EX Rank Progression • Hidden Mastermind • Academy Politics • No Harem — Description from novelcodex.org