Dungeon mind games

Rei is thrown into an underground dungeon where intelligence is the only currency and death games are the law. His crime: killing a system official to avenge his mother. His punishment: survive the elites' entertainment as they gamble on prisoners' lives. But Rei is no ordinary inmate. Trained since childhood in a secret military facility that forges superhuman minds, he enters the dungeon with a plan—one he set in motion a year before his capture. To survive, Rei must manipulate allies, deceive enemies, and outthink rival geniuses who share his dark past. From controlling an entire prison layer to faking his own death, from viral team games to an 80-player island battle royale—every move is calculated, every word a trap. However, the dungeon is merely the beginning. When Rei and other "promising prisoners" are transported to Rakuen—a thousand-kilometer dome housing multiple races, hidden truths, and an even deadlier game—he discovers the system's true purpose: to forge the ultimate mind. And Rei might be their greatest creation yet.