[Corundum] Id-hen de Gakusei Sekkusu wo Kitai suru Alter-san (Fate/Grand Order)

A school‑uniformed Jeanne Alter, acting as a demanding teacher, confronts a student at a shop counter, insisting on 700 yen before the situation quickly turns aggressive. The male protagonist, Ritsuka Fujimaru, is drawn into an intense, consensual encounter where she dominates with large breasts, heavy breathing, and explicit acts, including a three‑hour continuation of passionate sex. The doujinshi delivers a fantasy‑driven, single‑female, single‑male hentai story that blends Fate/Grand Order lore with raw, erotic tension.