http://tol.wikia.com/wiki/The_Mercenary
There were two people who lived in castle Adiart, brother and sister. Both of them were knights. They had that special sibling bond, and loved each other dearly. One night, however, the sister decided to attack who she suspected to be a member of the Black Rose. The brother decided to attack someone he thought was a convert. However, a butler, who was suspicious of the brother, got him drunk, which left him with no one to attack. The assassin then killed him, while he was drunk. The sister killed the assassin, her suspicions confirmed. However, she saw her brother’s dead body, and found a bottle of exquisite wine with him, knowing the butler got him drunk. Torn, she blamed the butler for letting his abilities go to waste. She also blamed the assassin for killing her brother. But most of all, she blamed herself for not being able to protect him. Hating the Blue Dragon as well as loathing the Black Rose, she decided to make up for what happened by protecting other people, as well as having no other allegiance besides to her client. If someone were to offer her a permanent contract, however, then things might just change…
