From generation to generation, Jung Family was known to be expert in medical field. Their medical practices were known world wide and there were no disease that could not be cured by them. Their blood was the key of this miracle. Blood that can cure every disease, physical or psychological, in this world. Everyone respected and worshipped them.

The ninth heir of Jung Family, Jung Yunho, had fallen in love with Jaejoong who was his biological brother. This occurrence marked the beginning of the misfortune in Jung Family.

He, who bear the blood of forbidden alliance, shall be cursed for life.

He, who born from the taboo relationship, shall possess blood that can cure any illness in exchange of his well-being.

He, who obtain the heart of Jung’s cursed offspring, shall be granted an immortal life.

He, who born bearing his parents’ sin, shall suffer till the end of his life.

The prophecy has changed the fate of Jung Family since then.