Closed Room Mafia Summary:

High school student Kang Chul-joing awoke in an unknown locked room. He finds himself in a chaotic situation, he searched around the room and found an old MP3. What he learned from the message left on the MP3 was that he was poisoned and that he had only three hours left to live. Kang Chul-joong,...
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List Chapter: Closed Room Mafia