[Akamuni. (Akayoshi Hajime)] Boku to Shishou ~Yami no Mahou ni Mushibamare~ (Mahou Sensei Negima!) (MTL)

A long‑haired figure is shown bound, gagged, and drenched in fluid on the cover, hinting at a dark, magical domination. Inside, a teacher‑student exchange escalates into explicit, bondage‑filled intimacy as the student’s voice leaks and the teacher’s touch drives her toward ecstasy. The afterword confirms this is an adult doujinshi based on Mahou Sensei Negima, blending magical fantasy with rough, mosaic‑censored erotic scenes.