Wondrous Soroban of Kaiu Haruko
Created by: Kaiu Haruko
First used by: Kaiu Haruko
Currently in the possession of: Lost in the Shadowlands

The Wondrous Soroban of Kaiu Haruko was the first soroban of Rokugan. It was made of copper and coral. [1]

Kaiu Wall Edit

In 716, during The Maw's attack on the Crab lands, Kaiu Haruko devised the abacus to shorten the time needed to design the Kaiu Wall and to plan the logistics for its construction. In four days she accomplished the task, but before the wall was finished she had died in the fight. The abacus was held by her three students. [1]

Lost Edit

The soroban was lost at Hiruma Castle in the 10th century, when brought along to aid future fortifications once it was retaken. [1]


  1. 1.0 1.1 1.2 Bearers of Jade, p. 61

Crab This Crab Clan related article is a stub. That means that it has been started, but is incomplete. You can help by adding to the information here.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.