Dear players, welcome to "Light and Dark Game".
This game is divided into three rounds. The player who achieves the goal after three rounds is the winner.
The reward of the game is a life and 0.5 Tons of pure gold.
What the loser has to face is his own death.
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At that moment, when twenty "players" were told that the goal of the first round was to solve the case before the world's number one detective, seventeen of them first thought of killing the detective.