Terra

Terra is the Ra-Seru partner of Noa. During Noa's early life, Terra attached herself to an old wolf and raised Noa. When Noa came to the right age, Terra revealed herself to be a Ra-Seru and then joined forces with Noa.

After defeating the final boss, Terra, along with Meta and Ozma, evaporated when she sacrificed herself to destroy the Seru once and for all.