'Why am I so unlucky in love?'   Is a question that M-University's  teacher Hyoyeon always asks her best friend and fellow teacher Woohyun.   'Be patient, your luck could change at any time!'

Standing on three different tiers of the hierarchy, they have nothing in common. But the Third Realm is no longer safe and at the heart of it all is the one girl that they would lay their lives down for. It's no longer about who you can trust, it's about who can keep you alive.