Rinko Iori is a supportive and caring mother to the protagonist, Sei Iori, in the anime series Gundam Build Fighters. She manages a model shop named Iori Model Shop, which specializes in Gunpla, the plastic models of Gundam suits. Despite her lack of knowledge about Gunpla battles, Rinko is very supportive of her son's passion and aspirations. Her nurturing nature and cheerful personality provide emotional support to Sei, fostering a warm family environment. As a character, she embodies the themes of family support and encouragement throughout the series.