In a certain brothel, there is a store where you can enjoy the ultimate 3P (4P depending on the course), a soapland where 2 to 3 girls always serve the customer. Double or triple full body lip service is always a given, and although it is not lesbian, the closeness between the girls is important. The biggest selling point is the act of licking the penis that is being inserted, having another girl lick the penis that has been pulled out, and receiving the sperm that has been ejaculated into the inside of the penis with the mouth of another girl, "hamechio", and servicing the customer to the fullest.