park kai-in (played by son ye-jin), a furniture designer who is simple and kind, is a hopelessly confused woman. her boyfriend han changyeo (played by kim ki-suk) is about to hold a wedding with her good friend kim in-hee (played by wang ji-hui). she still didn't know anything at all and mistakenly thought her boyfriend was going to propose to her. after realizing it, she became enlightened.

park kai-in (played by son ye-jin), a furniture designer who is simple and kind, is a hopelessly confused woman. her boyfriend han changyeo (played by kim ki-suk) is about to hold a wedding with her good friend kim in-hee (played by wang ji-hye). she still didn't know at all and mistakenly thought her boyfriend was going to propose to her. she realized it later.