This will be a romance/action/supernatural/angsty fic for BTS. In this world, there are things called "Contracts" where a human or people can summon a mythical creature in order to protect themselves and unfortunately some are used as slaves. These Contracts are made by only saying "I beg of Thee to give me salvation," a drop of your blood and required only 10 years of your life. If you had more than one person,