The Dragon Lord's Substitute Bride

Once a seductive succubus, Evelyn gets reincarnated as the neglected, absolute black sheep second daughter of a snobby noble family. So, when her "perfect" older sister Celina totally nopes out of a terrifying marriage pact to be a Dragon’s Sacrifice, Evelyn doesn't hesitate.

Eyeing that sweet dragon hoard and absolute power, she eagerly takes her sister's place and heads straight for Black Peak. She tries her best to play the ice-queen sister, completely oblivious to one massive detail: Kael