Mahiru Atsuka
Age: 14 A middle school girl who lives in the neighborhood of Noriko and Rhianna. She is currently afflicted with chuunibyou and is interested in black magic. She honestly believes that she is a "chosen one" who can perform magic and is oblivious to her chuunibyou. She isn't good at interacting with other people, gets embarassed easily, and exhibits stalker tendencies. She initially had unkempt long hair until she was forced to have her hair cut after a failure of Rhianna's magic practice that resulted in her hair being burned. It was revealed that at the age of 11, she picked up a discarded box containing Noriko's chuunibyou stuff which caused her interest in magic. She considers Noriko as an older sister figure, and had somewhat developed lesbian tendencies thanks to hanging out with the group.