She is kind and has quiet personality. Her character was based on Snow White.
SpoilerWhen Ringo learned about how she was driven away from her father, she felt embarrased and felt guilty about Himeno's situation. Ringo separated herself from her home and started living alone, to be independent from her parents, and to able to help Himeno. She tried to help her older sister, but she never could, she eventually avoided her. The two reconciled their feelings later, and Himeno stated that she was never angry of Ringo, because she didn't know about the situation they were in, and even if she knew Ringo couldn't do anything about it.