START-579 — My Strict Female Boss Was Actually The Worst-Performing, Most Insulting Bunny Girl At A Massage Parlor In Japan, Who Even Let Me Cum Inside Her! She Belittled My Virgin Dick Countless Times, Both At The Shop And At The Office! Yui Mahiro [8Th Anniversary Work]

He's back, answering the long-awaited calls! Yui, the psychopathic, power-abusing boss, inexplicably leaves work on time only on Fridays. I know why... Yui's nighttime persona is the No. 1 girl at a brothel catering exclusively to masochistic men! To release my daily frustrations, I, a virgin, secretly go to the club to try and find something to exploit about Yui, but instead, I'm swept away by waves of pleasure from her insults and techniques...?