Miss Vampire's Bullying Game

The ancestor of the bloodline, Irina, disguised herself as a dark loli to watch over her blood meal— a cursed bounty hunter named Chelsea, whom she pretended to be engaged to. However, she accidentally entered into a binding contract with her. Irina originally thought the scenario would be: "Chelsea kneeling down, becoming my blood slave…". Little did she know, the actual scenario was: "Little angel, please, mercilessly bully Chelsea…". This confused Irina greatly. What should she do with her fake fiancée who constantly begs to be bullied?