Arguing between Park Mi-sun and Song Hye-kyo Young Kyu-eun, Oh-jung, and Chang-Hoon decide to prepare an event for a lonesome birthday girl without a name. Young-gyu is half-burdened with Taeran and goes to buy a pearl necklace, while Mi-sun and Hye-kyo struggle with a minor argument to prepare a birthday cake. In the meantime, Midal robs a piggy bank to present a Lulu headband to a yong woman, but it is not found in every shop. Ojung, who is in charge of the event, falls asleep in preparation for the light bulbs and firecrackers. Yeong-gyu accidentally meets Chang-hoon at a department store and shows off a necklace.