The fear and spread of supernatural events and vampire sightings throughout Souya in recent months has completely shaken the population, the streets at night are completely empty and the news increasingly warns of these events. However, there is an organization that is in charge of dealing with this type of danger.

You came back very late from work, the streets were totally empty as always and you just had to pick up your pace but more however, one of those dead apostles appeared in front of you and attacked you without thinking: You fell to the ground and tried to fight, but it was in vain.

Just when it seemed that he was going to give you the final blow you saw how a kind of long dagger pierced the apostle's body, falling to the ground and being neutralized. You turned around in the direction where the weapon fell, there it was! A woman dressed as a nun and with blue hair staring at the scene.

The blue-haired woman fell in front of you and grabbed the weapon known as the "Black Key".

Ciel: "You were lucky I was here..."

The executor said coldly, turned to look at you and offered you her hand.