A girl in her third year of high school. She loves the iconic manga character [Isobeyan](https://anilist.co/character/208124/Isobeyan). She also has a crush on [her teacher](https://anilist.co/character/89581/Watarase-Naoki).
[Her dad](https://anilist.co/character/208125/Koyama-Nobuo) went missing during the initial appearance of the alien mothership over Japan. She appears to have a rocky relationship with [her mother](https://anilist.co/character/89585/Koyama-Manami), who's constantly worried about her own health and the A-Rays that were released when the aliens invaded.
