Artist patron site: https://fantia.jp/fanclubs/7219
Pixiv: https://www.pixiv.net/member.php?id=82301

There's a basic introduction to the Magical Student series here: https://e-hentai.org/g/1235006/6d446f4bb0/
Konoha appears in the following doujins:
https://www.pixiv.net/member_illust.php?mode=medium&illust_id=62964910 (West 1)
https://www.pixiv.net/member_illust.php?mode=medium&illust_id=67040890 (West 2)

-DESCRIPTION-
(info collated from google translate)
Konoha is a 16 year old magical girl who goes to the "West" school, where students are typically equipped with weapons to make up for poor direct combat strength. She's the sister of No.20 Aoba.

-CONTENTS-
(all guesswork from google translate)
p1-3: cover and character sheet
p4: Excerpt from West 1, where she saves Aoba.
p5-8: A "what if" story where she is found naked at a hot spring by spider humanoids.
p9: Excerpt from West 2, where she sustains serious injuries.
p10-17: Konoha loses her weapon, leading to her defeat.
p18: Konoha'd magical girl form falters
p18-22: Unknown sketches.

OTHER CHARACTERS:
https://e-hentai.org/g/1235006/6d446f4bb0/ (Character Guide)
https://e-hentai.org/g/1283259/ea309a2b3b/ (Aoba)
https://e-hentai.org/g/1263354/8f2a30c457/ (Asuka)
https://e-hentai.org/g/1256909/4896705cd4/ (Yuko)