"I don't need a Prince who will die for me. I need an Executioner who will kill for me."
"Then, I'll gladly be the dethroned Queen's Executioner."
When Aeris Venatrix was dethroned as Queen of Elysian for the crime of killing a royal blood after being accused of aborting her own baby, she knew her exile to a Villa is just a cover-up made by King Mikhail VII in order to execute her in silence.
Swearing to kill the King, Aeris fled to the nearest territory and found herself at the border between Elysian and the Obsidian Empire. Upon setting foot on enemy territory, it was too late for her to turn back, especially when the second Imperial Prince of Obsidia himself had found her.
Zion Obsidia, the Prince known for his cruel and vicious nature, earning him the moniker The Bloodhound Prince.
He professed his love for Aeris, saying that he had loved her longer than she would have known. And for that, she might not need him as a Prince who will die for her, but he's more than willing to be the Executioner who will kill for her.