 A drama CD was released in Japan in September 2009.Jin-Ho Myung returns a wallet and cell phone to a beautiful young woman (Hae-Young Nah) in a book shop, little realizing that she would notice that he has already (rather presumptuously) taken 7000 won to buy a book he really wanted.The woman in question is understandably rather upset but decides to consider the money as a loan, which she expects to be paid back.