The underworld overlord in his previous life was shot to death, and he opened his eyes and returned to the high school classroom in the 1990s.
This time, he no longer wields swords and guns, but picks up books and studies people's hearts.
From a low-level clerk to a high-ranking official, let's see how the former king of the underworld thrives step by step.
He has no regrets in the official chess game and has embarked on a completely different career path.
