Empire of Nijisanji: origin story

Long ago, a Son of Heaven was crowned on earth by the name of Tazumi Riku. By the guidance of Kizuna Ai and the Four Heavenly Kings, Tazumi-san was directed to the lands of Nijisanji, where he founded his state. The locals proclaimed him as Divine Emperor, and the Gods and Goddesses he brought along the way became their own. The tribals became civilized thanks to Tazumi-san, and cities and towns emerged across the lands of the Empire, named after their Diety of choice. As for Tazumi-san, he would be honored with his imperial city from which he called Ichikara. Ichikara became known as Anykara or Anycolor as time passed. From Ichikara, Tazumi-san still rules today as the Divine Emperor but rarely interferes with the affairs of state and keeps himself in Divine Seclusion in Ichikara. By his divine words, "Accelerate" Nijisanjification has overtaken a whole continent in some form or another.