Sexual desires are wide open! A beautiful 18-year-old girl with a tanned body is curious about creampies! She wants to have a baby, but she's too free-spirited about sex, so I'm a bit worried... Her experienced sister, Otoichi Mine, will teach her the correct way to have a baby! "It's not enough to just want to have sex! The mood is also important." She wants to put her sister's teachings into practice right away, so her sex is a bit out of control... She's struggling to receive proper instruction once again and have a pleasurable creampie sex!