Kirisaki Kyōko

A half-Earthling half-Flame Seijin (alien) girl, Kyōko is a famous idol who the ability to create and throw fire at will and becomes a friend to Run when Run portrays an antagonist on her show. She is best known for her role as Magical Kyōko, a fictional magical girl character who stars in her own television series Lala loves watching, often forcing Rito to watch it with her. She reappears again as Run asks Rito to be her date, however Kyoko is able to tell they aren't dating though wishes her luck on getting him.

Later she shows up at Rito's school for a lecture while Run is at a recording and ask Rito to show her around. This was actually a plan to get information on him for Run however after she gets swormed by fans and Rito saves her and she appears to start to develope her own feelings towards Rito.

Ever since their first meeting on her show Run and her have done many projects together, one of which is debuting many songs together.

It also appears that her character is adapted from "Kyōko Kirisaki", from one of series artist Yabuki Kentaro's works, "Black Cat". Both characters have the same name, the same fire-breathing ability, and the exact looks.

Ablitities
Being a half-Flame Seijin, Kyōko possesses the ability to conjure up fire and flames to burn whatever she desires, which usually uses as a special effect during her role as Magical Kyōko, or to defend herself from perverts.