"Hey, Jinhwan, why don't we make a deal?" The ten-year-old Jinhwan stood up from his kneeling position and stood eye to eye with the girl he was currently infatuated with. Showing his widest, toothless smile, he replied, "Anything for you! What is it?" "Right now, I might not like you, but I might later when we grow up. So how about this? If we ever get to meet again when we are in high school, I will date you.

A girl who's slowly losing her hearing. A guy who's dream is nothing but music. How much more ironic can this encounter get?

What does it take for a group to debut? As they stand up to each obstacle thrown their way, Infinite is determined to protect their friendship and debut successfully as one team.