[i want to bathe in, drink, and drown in zero-defilement pussy piss!] once a month, due to their parents' work, three close niece sisters visit their uncle's countryside house. the uncle who loves piss and nieces gives the three, who beg for pocket money, 100 yen each in exchange for a simultaneous piss shower! the nieces, whose tension skyrockets for 100 yen, drink up the piss while their faces and bodies are soaked, and spend the best days being teased. today, too, they ejaculate with fresh, transparent piss that only nieces can produce!