Rinko Kougyoku 紅玉りんこ

The main Heroine of Jewelpet and Ruby's Human Partner. Rinko is a normal girl who dreams of her Prince Charming on a Horse who will sweep off her feet. Although she both attends Junior High in Earth and School of Witchcraft and Wizardry in Jewel Land, Rinko also has Acrophobia, can be timid sometimes, and has bad English Speaking skills.

She along with Ruby and her friends were chosen by the Four Witches to gather all the lost Jewelpets back to Jewel Land before something bad happens to both worlds.