Unspoken facts about Yakuza !!

The name Yakuza originates from the traditional Japanese card game Oicho-Kabu, a game in which the goal is to draw three cards adding up to a score of 9. If the sum of the cards exceeds 10, the second digit is used as the score instead, and if the sum is exactly 10, the score is 1. If the three cards drawn are 8-9-3 (pronounced ya-ku-sa in Japanese), the sum is 20 and therefore the score is zero, making it the worst possible hand that can be drawn