Grandpa Kameichi is a yoga instructor, and Nami lives at his home, undergoing intense training. However, his yoga lessons are far from ordinary—they include erotic elements. During practice, he touches her breasts and groin, shares baths with her, and engages in various lewd acts. Nami undergoes dildo blowjob training, eventually leading to her pussy being penetrated and forcefully squirted. The film features deep kissing, cunnilingus, oil massage, foot sucking, and a range of other explicit acts, testing just how much Nami can endure.