Amahara (アマハラ) is a family that only Grandwalker Nexuses possess. It premiered in BS49. Grandwalker Nexuses in this family always has exactly two colors, and two reduction symbols with one color each. For example, The Grandwalker Susanoo is Blue/Red.
The name Amahara stems from "Takamagahara", the dwelling place of the Japanese gods and goddesses.
In the events of the Ultra Advent Saga, Amahara's forces, led by Susanoo and Tsukuyomi, stood in a gray area in the war against Zeus-Lolo, seemingly allied with Alex's forces while also conspiring with the enemy.