An ice-themed magical girl that doesn't mind killing. Is an only child and her parents are often away, but she loves them anyway. She practices taxidermy. Her magical girl name is Glitter Diamond, and her friends consist of Glitter Heart whose real name is Maya, Glitter Spade whose real name is Makoto, and Glitter Clover whose real name is Alice. Her magical enemies consist of non-human people known as the Selfish. The Selfish include Ira, Marmo, and Bel. Rikka is interested in Ira.