Sanae Dekomori

凸守早苗, Deko-chan

A fourteen year old girl. She, like Rikka, is a Chuunibyou. She claims that she is Rikka's servant and wants to take her master's place. Her "power" is Mjolnir, a pair of hair nunchucks. Despite being a Chuunibyou, she is top in her class. Little was known about her family but it's implied that she is from a rich family.

(Source: ANN)