Hyundo is the owner of a jajangmyun restaurant. He adopted 6 sons, Eric, Minwoo, Dongwan, Hyesung, Junjin and Andy throughout his life. They're a happy all-male family. At least that was what it used to be, before that one day, that one call. Now, they're life is incomplete as they feel the emptiness in their heart. The laughter that used to surround the house was gone. Until a broken man appeared in their restaurant that caught everyone's attention. But the man was surprised by the attention they're giving. "Who are you?" was the only phrase that came out of the man's mouth, much to everyone's surprise.

I lost my stupid twin.

I lost my direction.

I lost the affection.

I lost a pranking partner.

I lost a brother.