Miwa Yamamoto is a deviant female masochist who finds pleasure in being trained and dominated by men, obediently accepting anything commanded of her. Every night, groups of men gather to brutally gangbang these trained women in an intense, pleasure-filled frenzy. Choked, rolling her eyes back, and losing bladder control, one extreme episode after another vividly portrays her overwhelming ecstasy. The most extreme training proceeds nonstop, subjecting her to a full course of relentless orgasms, driving her into a crucible of pleasure. This is the fate of Miwa as a sex slave, immersing viewers in the twisted world of pleasure her existence creates.