Two gentlemen working behind the scenes to find a tower with a diamond embedded in it. I'm shopping around for towers on this side and that side, hoping to get the more valuable one. Since neither party can see the other side, it seems that the only way to find out the value of the tower is to see what the other party does. Is your guess correct? Is it off? Is it a bluff? When the night of suspicion ends, the truth about the tower is revealed! This is a mystery x psychological game that will impress you with its unique features that are unique to a two-player game.

This game was designed by Susumu Kawasaki, one of Japan's leading game designers.