To protect delinquent students… Married female teacher's after-school sex toy, Minami/Minoshima Eri DLDSS-481

Six years into her marriage, Suzume is a dedicated and righteous teacher. One day, she learns that Eri, a top student in her class, is being bullied by delinquents, so she informs the principal. As a result, the punished students turn their anger on Suzume and Eri… Then, when Suzume is blackmailed into posting a video of Eri in lingerie on social media, she volunteers to be a substitute, allowing her mature body to be violated. "It's all to protect the students…" However, this gradually turns into a life of being a sex slave with Eri…