Kanon, a big-breasted girl with a lolita face, possesses a mysterious charm and hidden masochistic tendencies. Living with two perverted old perverts, she undergoes daily training within the household. Over the course of one intense week, she is subjected to a relentless regimen of torment: blindfolded abandonment, spanking with folded futons, dildo penetration, vibrator stimulation, and electric massager sessions. The scenes where her nipples are clamped with clothespins plunge her into whirlpools of pleasure. Possessing an insatiable, abnormal libido, she is toyed with in a threesome by the two old men, climaxing repeatedly. Throughout this process, her deep-rooted masochistic nature fully awakens, culminating in her complete submission and total training as a perfectly broken girl.