Mitsuki Nagisa is a beautiful maid dreaming of serving her master both physically and mentally. However, her new master turns out to be... a perverted man who couldn't care less about propriety. On her first day, he peeks at her panties, explores her body, and even shoves his hard cock into her mouth to silence her protests. Despite her initial resistance, she soon finds herself being brutally fucked and impregnated by him. Resigned to this reality, she submits to various forms of sexual training such as full-body massages, blindfold bondage, and vibrator exercises dictated by her lewd master. One day, when her master is away on business, Mitsuki sees this as her chance to escape this tormentful situation...