Hitozuma Gakuen ~Itonami Shidou de Choukyou !? Hameochi Suru Seijunzuma~

The story is about Hina, a happily married woman who wants to improve her cooking skills to show love to her husband. She discovers the "Housewives Academy," an affordable cooking school for married women, and decides to enroll. However, the academy unexpectedly introduces intimate courses that lead to Hina's transformation from an innocent wife to a participant in sensual experiences, straining her previously pure marriage.