A marriage of convenience shouldn't stop you from having fun! Playboy lawyer Taeshik's determined to make his last day as a single man as memorable as possible. A club is the best place for sexy encounters that don't last, and Taeshik thinks that his one-night stand with Heejoo will be nothing more than a one-night stand... until the next day when he finds out that she's actually his bride-to-be! This could be an opportunity for him, so he decides to train her to be the one and only bride for him "I promise I'll make you happy, so... can you do me a favor?"