Konishi (小西) is a student in class 1-C.
Konishi has purple straight hair and wears a white headband. She also wears the standard school uniform of Hoshinoumi Academy's Middle School.
She has a crush on Oikawa, but ever since Ayumi transferred to their school, Oikawa seems to have forgotten about her. Later, she attempts to kill Ayumi with a box cutter, but fails after Ayumi awakens her "collapse" ability and destroys the school building, after the first death of Ayumi, Yū uses the "time-leap" ability to revert the incident, Yū appears to bluff Konishi and makes her run away in fear.
- She is the first yandere character in the KEY series.
- Because of her role that caused Ayumi's death and Yuu's depression, this leads Konishi to become the most hated character in this series by the fans.
|Main Characters||Yū Otosaka • Nao Tomori • Jōjirō Takajō • Yusa Nishimori • Misa Kurobane • Ayumi Otosaka • Shunsuke Otosaka • Takehito Kumagami|
|Supporting Characters||Maedomari • Medoki • Shichino • Furuki • Sala Shane • Kazuki Tomori • Yumi Shirayanagi • Tsutsumiuchi • Konishi • Udō • Arifumi Fukuyama • Saitō • Iori Sekiguchi|
|Minor Characters||Mishima • Kōta • Shō • Nomura • Oikawa • Sugimoto • Takato • Yoshiyuki Ōmura • Mrs. Tomori • Gondō • Hosoyamada • Mr. Kurobane • Mrs. Kurobane • Honoka|