Yoo Momo and Sam Yoonji are bestfriends with a common interest. KPOP.

They are called soulmates because their biases are called soulmates as well. And for the past year they have been sending letters to them, Momo-Jaejoong, Yoonji-Yoochun.

Now, Momo, in the verge of giving up received a news from Yoonji that Mr. Egg is now in their country for an unknown reason. Momo couldn't care less. Would this be just an insignficant news? or Mr. Egg is here to bring a good news to them? Or could they just be dreaming?