Young warriors Tieria and Burn arrive on Earth to start a new life after losing their home planet. However, the Murder Empire, which destroyed their homeworld, extends its invasion to Earth. Having lost their father and Karen, the two vow to defeat the empire and protect Earth. Meanwhile, a mysterious evil female warrior known as the "Monster," clad in a red life-support enhancement suit, attempts to disrupt Tieria's transformation by trapping her in a web of lust. She forces an extra-thick special vibrator deep into Tieria's vagina, torturing her mercilessly until she climaxes repeatedly. Enemy soldiers also assault Tieria, repeatedly creampieing her and exhausting her body. Despite enduring these violations and lamenting her own femininity and flesh, Tieria remains determined to fight evil. However, the story takes an unexpected turn—she loses her partner, becomes ensnared by parasitic tentacles invading her body, and ultimately falls into eternal sexual servitude. [BAD END]