Office worker Himari leaves her worried boyfriend behind for a business trip with Takeda, the boss she despises. Obsessed with her Q-cup breasts, he gets her drunk, forces her into a shared room and assaults her while kneading them. After filming the attack, he blackmails her and leaves her nowhere to escape. He fucks her in the shower and even while she talks to her boyfriend on the phone, forcing her to give titjobs as well. Though she hates it, the relentless pounding makes her huge breasts bounce through repeated orgasms, and her feelings for her boyfriend are gradually overwritten by her boss's cock.