Ibuki Nazuna♀

Nazuna is an airhead who loves rockets, burning things, and is loaded. Much of what she says sounds crazy to other people and she has trouble holding conversations, but it all makes sense if you listen carefully and get on her wavelength. Her father is AXIP’s chairman of the board and she’s been in contact with rockets since she was very small. This makes her a very capable rocket scientist, especially in the field of propellants. She’s been friends with Arisa since they were small children.

[From MangaGamer]