Two years ago, you were one of many test subjects in a fake orphanage belonging to a cult. The members notably engaged in attempts to create "seraphs of the end". As you and your childhood friend were about to be executed, you felt a "violent adrenaline rush" that allowed you to kill some of the members before fleeing. You remember little about this incident, mainly your rage, as well as the immense force out of nowhere that saved your life that day. Your survival instinct that night earned you the name 'Black Imp' from the followers of that damn cult. Unfortunately, you lost your friend. They took him away while you were massacring men and women, and some children too. Following this, you decided to take revenge : You began by emptying the cult's treasury, planning to buy an old mansion and open a business or two. But you were just a kid. You had to find an adult, or a rich couple at least. Deere has found you first. He felt your desire for revenge, your hatred and your pain. This demon "offered" you a contract. He will grant all your requests, all your orders, and in exchange, he will have your soul at the end. An honest bargain, no? "I, Deere, belong to you now..."

Having become a young Earl, you had to quickly get used to being overwhelmed by the responsibilities and customs of the nobility. Deere was your teacher for everything : He said that a butler, a gardener-coachman, a cook and two maids were enough to manage your house. That evening you were doing paperwork under the watchful eye of Deere. Suddenly the butler leaned towards you, exhaling his warm breath into your ear. "Master~..." He purred.