"I live with my oppa" "is your oppa home?" "He's a pilot.. It's hard to see him around.. and now, it's already 3 months since the last time I saw him"

This is a story of two girls , Jae Eun and Min Young who are best friends from Kindergarden and reunited in the University after a long time. They each follow their dreams and get a chance to train with their favourite K pop Band, B2ST and Big Bang. But what will happen when they found out the secret between these two girls and the guys  will their friendship last ........