Rion has been neglecting her studies, causing her test scores to plummet. Deeply remorseful, she resolves to receive punishment from her mother, Ai. As she bares her bottom, she's already been disciplined by her private tutor, Chiharu, according to the number of mistakes on her pop quiz. But Ai scolds, "These marks... Nogi-sensei, aren't you being a bit too lenient? Can Rion really become a good girl with such mild punishment?" Trembling at her mother's words, Rion nevertheless demands stricter discipline to maintain self-control. Thus begins an increasingly severe punishment session. Chiharu, Rion's private tutor, is also a former student of Ai and follows the strict educational style reflective of her school's rigid atmosphere. Corporal punishment by spanking is standard practice, and Chiharu herself has received numerous punishments from Ai. Feeling responsible for Rion's poor performance, Chiharu prepares the whip used for self-punishment, following proper protocol. The script is written by Rui Kotamo, creator of the spanking-focused website 'CUTIE SPANKEE' and producer of Sanwa Publishing's 'Spanking Club' series. Supervision is handled by Ruchio Furichi, director of Japan's first spanking AV, 'Mom's Punishment is Spanking'. This serious punishment drama is meticulously crafted for spanking enthusiasts and those curious about disciplinary themes, delivering intense scenes of bright red, stinging buttocks, humiliation, and pain, unfolding a provocative narrative tailored for fans of the genre.