|Occupation||High School Student|
|Seiyuu||Sawa Konohana (games)|
Nana Furuhara (anime)
Natsumi Koizumi (小泉 夏美 Koizumi Natsumi) is one of the minor characters in School Days and Cross Days.
She is one of Otome’s lackeys. She is a student in class four who is the most informative and interpersonal friend of Otome and bullies Kotonoha. She and Kumi Mori take charge when Otome's not around but she and Kumi Mori are slightly less cruel than Otome and in the event Makoto does come to Kotonoha leaves her alone.
She has spiky purple shoulder-length hair and pale blue eyes.
Loves to collect rumors and gossips.
- Her name and birthday are derived from Junichiro Koizumi.
- Her given name Natsumi means "summer beauty" while her surname means "little spring".
- She is the only one among her friends to not be seen having sex or is implied to have one offscreen in all the games (Minami seduces Makoto in Cross Days while Kumi has sex with her boyfriend offscreen in the haunted house during the event of School Days.)