The series follows the harrowing and sexually charged ordeal of Otonashi Lemon, a rabbit-girl sold into brutal sexual slavery. Her master, Viscount Anthony, subjects her to relentless and degrading training to become his perfect pet. Lemon endures a series of humiliating and intensely pleasurable torments, including public exhibition, forced group encounters, and extreme BDSM sessions. Throughout her enslavement, she is systematically broken down, her will shattered as she is forced to orgasm repeatedly for the pleasure of Anthony and his depraved associates. The narrative climaxes with her complete submission, where she finds a twisted sense of purpose and ecstasy in her role as a mindless sex slave, her body used as a cum-dumpster in lavish, aristocratic orgies, fully embracing her new life of perpetual carnal servitude.