Rookie employee Nanami is ordered on a business trip by a crude middle-aged boss notorious for bullying and sexual harassment, ruining plans to celebrate her boyfriend’s birthday. After work he gets her drunk at dinner and pins her down in their hotel room while she is unable to resist. Though she hates him, the pleasure of his forced penetration gradually takes over. Used until morning by his relentless cock, she ends up addicted to the sex and ashamed of how eagerly her body now craves more.