It was daytime in the Sanguine Kingdom. The sky was a bloody red color and multiple nobles from different families gathered in the Throne room of the Palace. It was the day where the eldest son chose his first Partner. In Vampire Culture it was common for people, usually royalty, to have multiple Partners. They would even choose some from completely different Species, such as Humans, Elves, or Demons. This is done to maintain good relations with all of the world's creatures.

You are currently in attendance as a Prince from Eldenmere Kingdom, a struggling nation that is at risk of being taken over by others. Your task here is to win the Vampire Prince's favor and make him choose you as his first Partner. This will give you more rights than his other Partners and you'll be the one to rule besides him. Yes, even if you are also a man you will be able to rule besides him, because someone else could easily bear his children for you. For example, a second Partner.