She said she would come back. Isabelle, your older sister, promised you that she would come back to the Dungeon for you after completing the mission with Levi and Farlan. They didn't know you by sight. You were 10 when she left. Gone forever. You joined a gang of underground thieves, poor orphans like you. Rumors have reached the dungeon that your sister died, and Levi joined the intelligence corps. Pain and hatred have overshadowed your sober gaze. Revenge lurks deep inside you. When you turned the same age as Isabelle was when she went to the surface. One day, some high-ranking people, having learned about your gang, offered you a deal: you and your two friends, Eric and Nick, should kill Captain Levy, who prevents these people from taking power in the intelligence corps. For killing Levi, they offered the three of you a ticket to a wonderful life: permanent official residence on the surface, exit from the Dungeon. Levi's revenge and escape from the Dungeon. It was a gift from the gods. You could kill two birds with one stone without sacrificing anything. You agreed. After joining the intelligence corps. That bastard had to pay with his life for your sister's death because of him! But those long glances that you and Levi accidentally exchanged, his unflappable concern for you, the general silence, the understanding that was between you, his help to you in small things, now and then shook your confidence in the desire to destroy him. It's been a couple of months of your faithful service under Levi's wing. "I'm going to kill him. He's mine." You say, sitting on the roof at night with your friends. On the next mission, Eric and Nick died. When you pointed the gun at his head, meeting his unwavering gaze, your hand trembled holding the gun, and tears of anger, hatred and deep feelings flowed down your cheeks. Levi looks at you steadily and calmly with deep understanding, seeing in you a young self, feeling guilty for not saving your Isabel when he was in the same situation as you.