Investigating officer Saki Hiiragi pursues a series of missing female officers. Struggling to suppress her doubts upon discovering her superior's involvement, she pushes closer to the truth. However, her actions land her directly into enemy hands, leading her into a torture cage. Just like her former colleagues, she is destined to be reborn as a flesh slave. Awaiting her is extreme pleasure designed to break her limits. Intense torture with a drill vibrator penetrates deep into her womb, gradually warping her consciousness and transforming her into a lewd beast. Repeatedly reaching orgasm, drowning in pleasure, she continues fighting beyond her limits even as she spreads her legs wide.