John and Mary, these two desire to be the strongest in the world. They don't want to be bullied by others; they want a good house, money, and the luxury of living without worrying about anything.

However, they were both average and talentless, with nothing to their names.

Still, they struggled as much as they could, and they achieved some small successes. But at the end of their lives, they were just mediocre. They both died in a dungeon because their teammates betrayed them.

When they opened their eyes again, they found themselves back in time, 20 years ago, at the same place where they had started their journey.

John and Mary met each other and decided to struggle once more.