Ichibukin, more commonly known as Bu, were small silver coins used for commerce in Rokugan. Five bu were equal to one koku, while one bu could be broken down into twenty copper zeni. One ichibukin could purchase one bushel of rice, as five bushels were considered to be worth one koku. 
- ↑ Legend of the Five Rings; Third Edition, p. 38
The sources relating to this article are in conflict with each other.
|"Roleplaying in the Emerald Empire" page 29 states a bu was ten zeni, so a koku was 50 zeni. --Oni no Pikachu 09:22, November 22, 2011 (UTC)|
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