Global Job Change: My Mana Pool Is Infinite

The world transformed into a game, and the dreaded College Entrance Exam became a dungeon crawl for survival. For Ling Zhan, it was a public humiliation: a ridiculed \"unprofessional casual\" in a world of powerful Assassins and Mages, mocked by peers and teachers alike. He’d ignored everyone's advice, pouring every single attribute point into an obscure stat: Blue (Mana). They called him a fool, but they didn't know. A hidden \"Strongest Auxiliary System\" had gifted him a unique path. While others struggled with specialized skills, Ling Zhan, with his seemingly infinite mana pool, had secretly mastered every single low-level skill from every profession. Now, as he steps into the deadly A-grade dungeon alone, the world watches, expecting his inevitable demise. But what they're about to witness is the terrifying birth of the most versatile, mana-fueled monster this world has ever seen.