Bishuu ~Chigyaku no Mesu Dorei~

Following the sudden death of her father, Kurise Saki becomes president of Chris, a long-established women's underwear manufacturer.
As a beautiful female president, Saki attracts attention from all walks of life, but then a nightmare strikes her.
She is attacked, raped, and blackmailed by the hideous, mysterious Gomi Asatoshi.
The relentless days of rape and training eventually strip Saki of her pride as a woman and an elite, turning her into a female animal.

Furthermore, a plot by a rival company to take over Chris gradually comes to light.
The clutches of Gomi Asatoshi's lustful evil spread to Saki's junior colleague Sakurazaka Ryou ,and her cousin, Rindouin Mio.

Behind the merciless rape drama, a conspiracy involving a corporate takeover unfolds.
Is Gomi Asatoshi just a rape fiend, or...?

[From the game's official website]