I'm Engaged to an Overbearing Rich Boy -Don't Be So Mean to Me-

Aged 28 and with no romantic prospects, Misaki hasn't seen any action since college. Driven by desperation, she lies to her friends about having a boyfriend, when who should appear but the handsome stranger she met - and almost went home with - at a bar one evening! Taking full advantage of the fortuitous turn of events, Misaki begs him to pretend to be her boyfriend, just for the day! He agrees, but on the condition that she keeps her promise. The only problem is, Misaki doesn't remember much about the night they met... She says okay anyway, only to very publicly find out he was talking about them getting engaged! And what's more, he's the heir to a major corporation...!