Shunki has been secretly hooked on gambling. Today, he surprisingly won big at boat racing and decided to treat himself to an ultra-high-class soapland as a reward... only to find his mother-in-law there! "What are you doing here, Mother?" "Shunki-kun?! Please don't tell anyone!" Shunki was stunned by the unexpected revelation of his mother-in-law's true identity. "You know, if you keep this secret, I'll give you plenty of service..." He had been curious about her slender body for a while and gave himself over to her without resistance... Her extreme erotic techniques guided him to the heights of ecstasy!
