Cha Bo Na, Ha Joon Ah, Ong Sung Woo, Jeon Jung Kook and Kim Taehyung were the known to be the naughtiest kids in a small village in Busan. The 5 kids were besfriends as long as they could remember but when they turned eight, Bona and her brother Eunwoo had to migrate to the city of seoul to live with their uncle. 

8 years later;

Bona and her brother came back to the village. Bona who was a plain and nerdy girl in the past came back as a beautiful and educated lady. Upon hearing the arrival of Bona and Eunwoo, their neighbours planned a celebration party for the two though not expecting the physical change of Bona. Sung woo who had a crush on her since they were child was taken aback by her beautiful face but Bona came back for another man, Taehyung.

What will happen and how will the story end?