3 Stories of Sachiko's Bursting Breasts. 1 A massage parlor specializing in breasts. She came there to consult about her stiff shoulders, but for some reason, she was made to take off her underwear for an erotic massage! 2This is a soap shop specializing in big breasts, where you can enjoy a completely subjective experience. Sachiko, wearing glasses, stares at you and gives you an erotic service. 3Sex education for my stepsister Sachiko. Her stepsister comes to borrow the bath without a bra, and her stepuncle gets lustful...!