Seven years ago, she freely and easily abandoned ￥100 and ran away, carrying her unborn son with her. Seven years later, she returned with the lady killer’s genius son, never expecting that her darling son would sell her out to MBS International. Unexpectedly, her immediate superior was the Mr. ￥100 from seven years ago! “……Terrible girl, seven years ago, you dared to humiliate me so much! This time, I’ll definitely let you pay the price! For ￥1,000,000,000,000, I’ll buy you for the rest of your life!” Isn’t that too much for a buy one get one free bargain? The most two-faced couple, along with their two-faced son, staking their lives on the outcome…