As a result of 100,000 years of training in the super difficult dungeon, Gekokujo (3) / Jitsugetsu Asuka.

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Kai has finally cleared the super difficult dungeon after 100,000 years by defeating strong opponents who stood up in an infinite time and extreme state. Kai has returned to the original world, but time has not passed since he entered the dungeon. Kai, who has advanced in physical strength, magic power, and possessed skills, is attacked just before entering the dungeon and instantly kills the opponent who ran away for his life. Amidst that, Princess Rose was facing a crisis. The weakest boy who was said to be incompetent has reached the strongest after 100,000 years of training! Exhilarating Muso Fantasy, Part 3!