Mio Ichijo works hard at a delivery health service to repay her husband's debt in secret, but she finds the neighbors who live in her apartment building and spend their days carelessly unpleasant. She vents her frustration by picking fights with them every time she sees them. However, when her neighbors find out about her working at the delivery health service, they force her to have sex with them as revenge. It doesn't stop there. They even call people who hold grudges against Mio, making her a d***h**** and forcing her to endure endless penetration in front of them. She reaches orgasm multiple times.