 "Shiga" refers to actually quite a number of reptilian races found in the Savan, within the boundaries of the Nagai Empire. The only common factor between these races is that they possess four limbs (which may be any combination of legs, arms or wings), are reptilian, and are sapient. Most commonly, they are humanoid in form. The plural for "Shiga" is either "Shigas", or else "Shigai" (typically used when referring to the "race" as a group). Though not "proper", the use of the word "Shigai" when referring to a SINGLE Shiga is in such widespread use (at least among those who even know of the Shigai) that it is, in essence, interchangeable. (The same is the case for Chiga/Chigai, Rokuga/Rokugai, and Kiriga/Kirigai ... but woe to anyone who calls a single Naga a "Nagai"!)
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