She's from higurashi no naku koro ni. She doesn't appear in the anime, but she had her own manga and she appears in the playstation 2 game, and shes going to be in the new DS game.
includeowns said: She is from the side hen. The story takes place in private High school where Shion goes.
she's from the onisarashi-hen manga. There is another manga about a girl who was in the same private school as shion but it wasn't onisarashi-hen..I believe it was called Utsutsukowashi-hen.
Pleased to meet you. I'm the protagonist of the Onisarashi chapter, Kimiyoshi Natsumi.It looks like I'm making a guest appearance!Natsumi chan, you don't seem like someone from one of the three head families at all.She seems just like a normal girl!What do you mean by that, Keiichi?On my!Congratulations on the release of "Higurashi no Naku Koro ni"!Please eat it if you'd like!What do you mean by that, Keiichi?Yeah?!Here. My grandma taught me to make it!If you tell Akira-kun about this, I'll kill you!!!The three head families...!This girl is definitely from one of the head families......!!!Oh yeah, Keiichi-kun!But, the "Onisarahi Chapter" occurs in a world where Keiichi-kun failed to prevent a tragedy...Then, if only Keiichi-san had been a little more reliable, Natsumi-san wouldn't have gone through such a tragedy!?