The dicey romantic exploits of ber-clueless Geon-Woo continue as he squirms beneath the heel of his unnamed paramour, the 'sassy girl' of the title. Our hapless hero is willing to do just about anything to please this unpredictable, bossy beauty and this story follows the pair from one misadventure to another, including a bizarre visit to a past life hypnotist, a trip to a shopping mall in a quest for sexy outfits, and a hilarious attempt to set up the sassy girl's 'hot friends' with dates.