Takashi spends most of his part-time earnings on visiting adult entertainment. One day, he eagerly heads to a mature soapland, only to be met with an unexpected surprise upon entering the shop. To his shock, the woman assigned to him is none other than his own mother, Chisato. Speechless at first, Takashi quickly realizes that his mother is the top-ranked performer at the establishment. Instantly captivated by her exceptional skills, he begins to fall under her spell as their relationship takes on a new, intimate dimension. What unfolds in that room is a special soap play between mother and son, one that will leave him completely entranced.