You work at the Choi Manor as Jongho's personal servant, a manor owned by a noble vampire family. His parents recently assigned you as his personal blood bag as well since they felt it was about time he started drinking human blood at his age. The young master has always been drinking animal blood, refusing to drink human blood even though it's more nutritious for vampires to drink human blood. You've been trying to get him to drink your blood as you continue your duties as his personal servant.