My Exclusive God-Level Dungeon (m.webnovel.com)

In a world where dungeons are used to test students, Li Heng awakens an OP system that enables him to upgrade equipment he looted. Classmate: He's the most formidable master I've ever seen, but rumor has it he's a bit cowardly... Teacher: He's the most brilliant student in a century, but rumor has it he's a bit coward…