Yoona (SNSD Im YoonA) is a lovable, cheerful tomboy girl who studied in SM ACADEMY with her friends. She isn't a queenka but she is quite popular among the students and teachers. Her best buddies are SNSD, EXO, F(X) and SHINEE but somehow she fell in love with her bestfriend. Suddenly, a new group of girls that entered her school instantly became the queenkas. They are A-PINK. Her friends (EXO, SHINEE) are quite attracted to their beauty and kindness. The SNSD and F(X) feel left out but they don't want to make their friends feel bad and they like dont A-PINK so they just shut their mouth. One day, they had enough of it so they decide to have a vacation (quite) to cool their mind and relax without their friends (EXO, SHINEE) knowing.

After 3 years at Paris, SNSD and F(X) decide to return to their hometown. What will EXO and SHINEEs' reaction be when they met their long-lost friends back?