What if a new reality show was being produced? What happens when the rookie boygroups of KPOP are being starred in it? And what happens when the famous six member boy group become their special teachers? Will it all end in chaos or in supreme success?  

Everyone knows that The Cube Entertaintment has the best family known as the "CUBE FAMILY". It's amazing how they communicate and converse with each other, however, in this story it would mainly focus on 2 boy groups from CUBE, B2ST and BTOB, their amazing relationship with each other of "hoobae and dongsaeng"