Jongyun is a lone man, eventhough he wishes to be more noticed he still enjoys his life in peace, yet, that doesn't last for long as a sudden change strikes his very much normal life, what will his reaction be to this unfamiliar creature, to this unfamiliar feeling?

It was a world where hearts could be removed, be broken and be fixed, be bought and be sold.  Jonghyun fixed hearts for a living.  Minho had a broken heart and it was Jonghyun's job to fix it.