Natsuki Takeuchi, a young employee at a small company, secretly loved her married boss, Mr. Sato. Seeing him always dominated by his wife, Takeuchi thought, 'I don't want to lose to his wife,' and approached him. To have a better relationship than his wife, she allowed his fetish, anal sex, and gradually woke up to the pleasure of anal. She did deepthroat, anal sex in hotels etc. Now, she can't stop the anal affair.
