md-dev#4566

A game has 400K+ players in Japan. It is only for genius yet simple rule game and a super mind game like poker. It is a 2-player game using playing cards. Players cheat and doubt each other, like a deadly game. Each game typically ends within 2 minutes. To become a master, “Joker class,” it requires a high level of clairvoyance, strategic thinking, and an unshaken heart. Cowards are not allowed.