Delivery service malfunction warning! A delivery company owner, Yui Hatano (MRHP-027), is so despicable that he can't resist seeing a married woman's large buttocks in her clothing and has been engaging in unprotected sex for days.

When a delivery driver went to deliver goods to a house, he fell in love with the woman with the enormous buttocks who lived there the moment he saw her! Even when he wasn't working, he would visit her every day and have sex with her when her husband wasn't home. This is a story about an enormous buttocks.