riho, who works at a bar, makes a serious mistake and is forced to do overtime with the boss to compensate for the damage to the store. the boss, who had his eyes on riho's soft breasts, reveals his mother-fixated nature and begins relentless nipple development! sensitive nipples are twisted and fucked, causing her large breasts to shake and orgasm. tight nipple clamps are used for training. secret quick sex during business hours. unable to escape the sticky father's daily breast orgasm overtime, her sensitivity keeps increasing, and both her breasts and heart are being broken...