Naiko is one of the four sons of Bas Kóro (called the Four Trees). While large by Beta standards, Naiko is the smallest of his brothers. As a child they would call him “niko," which means “peanut" or "little one".
Unlike most Beta, Naiko is a habitual single-tasker. His brothers would often say that “Naiko requires all four hands to kill a fly." With a shrug he would reply “I always kill the fly." While Naiko may exaggerate his deeds, he never lies.