Also known as: 見知らぬ女子高生に監禁された漫画家の話, mishiranu_joshikousei_ni_kankensareta_mangaka_no_hanashi
English title: The Story of a Manga Artist Confined by a Strange High School Girl
Manga written and illustrated by Ryouma (Galley).
The female deuteragonist's name is Konata (Kankin Jk) (此方) revealed in chapter 15. Character tag and/or full name pending.