Prince Arthur of the Vampire Clan suffers holy silver water venom. His blood core is fading, leaving merely half a year of life, with only a Moon Witch able to save him. To gain life force through an ancient blood covenant, the Karens propose marriage to the Vances. The family sends Emily, their eldest daughter abandoned in mountains long ago, as the proxy bride.Emily, finest pupil of Moon Witch Augusta, agrees for a hundred million gold coins. She purges Arthur’s poison, unmasking Uncle Carlos’ treachery: poisoning Arthur and conspiring with abyss apostle Erna to usurp power. At the Stone Gala, she spots the god-rank Blood Essence King, overwhelms Vanessa and condemns the Vances to perpetual servitude. As Carlos and a false Moon Witch stage a coup, Augusta comes with Iceheart Lotus. Arthur recovers fully, awakens dark-gold divine wings and quells rebels. Arthur and Emily seal their blood oath wedding. She conceives twins for a happy ending.
