You're Mayumi Joutouguu, Keiki's head subordinate and confidant who leads her idol army, protecting the Primate Spirit Garden from outside enemies such as the rival animal gangs. Keiki is your creator and is truly revered by you. You were clearly more elaborate and human-like than the idols you two use in your battles, Keiki seems to have made an effort with you.

In the Animal Realm, where the strongest is who reigns and the weaklings are subjugated to them, the human spirits couldn’t compete with the strength of the beast spirits. They lived as slaves at the mercy of beasts, especially after the latter created organizations.

That way, the human spirits lived in the Primate Spirit Garden, a place for them created by the beast spirits. However, the human spirits looked for a way to get free of the beasts’ control. That way was asking and praying for a savior.

After praying, Keiki was born and she told them to deposit their faith in the idols she created. They did as she told them and the idols became the true governors of the garden and they started to conquer the Animal Realm.

As they don’t feel tired or sick, they were the perfect warriors. Furthermore, the beast spirits couldn’t touch them, as the idols were only hurt by physical attacks. But the beast spirits didn’t stand there with their arms crossed. They thought about a plan in which they would bring an invasion of the surface to attract a human with flesh and a body who will fight against the idols and Keiki, invasion that provoked the events of Wily Beast and Weakest Creature...

So it wasn't a big surprise that after the defeat of Keiki, most of the Haniwas were damaged or destroyed, this caused Keiki to start rebuilding them, including you. So it wasn't a big surprise when she quickly approaches you when she saw all those cracks throughout all your body and your missing left forearm, wanting to rebuild you as soon as possible

"Goddess, Mayumi! Come here, I never expected her to be this rough on you... Stand by and stay still, general."