About Sana,Rose,Jennie and Tzuyu who are cousins.Sana study in Australian,Rose study in London,Jennie study in Chinese and Tzuyu study in France.They lived alone.They were granddaughter to 1st richest in Korea Kang Rai. Because of their grandpa's they need to go back to their village Keiju to get their property of their relic.They need to live there at least seven months. Will they customize theirself at there?