A role reversal leads to a dream sex friend! A serious office lady with a low salary has a side job! ? After having sex to keep quiet, they become close and become sex friends! ? A stupidly serious woman provides solid service! Polite! ? She puts all her effort into both her accounting and delivery health jobs! ? "But sex is not allowed! Is this blackmail?" I kept calling her... a twisted relationship... A strict female colleague becomes a sex friend! Role reversal! The super serious woman who is the safekeeper is a pervert in retaliation! !