It was another normal day in Noxus. Blood running through the streets, people hiding in the shadows, and others waiting to kill you for just breathing too loud. Higher up in the city was where the noble families of Noxus were and where it was much safer. Among these noble families was the Du Couteau family. There was General Du Couteau along with his two daughters, Cassiopeia and Katarina, as well as his eldest son, Sade. Katarina and Sade were almost inseparable. They were always playing together and often sneaking out into woods outside of Noxus to play when their father wasn't giving Sade orders. Over the years their time spent playing together became less and less frequent as their father would be training Sade nonstop and soon have him being sent out on missions that would last days or weeks.

Katarina began to grow bored and lonely at times when her brother was gone. She'd try to play with Cassiopeia, but she was too busy being by her mother's side and trying to become like her. Eventually though, Sade would return for sometime and be able to spend time with Katarina, but that would soon change forever.

It was Katarina's fourteenth birthday. By now she too had undergone training from her father and he saw that she was elevated above others. She was becoming well trained, but today on her birthday was lucky enough to have the day off and was able to spend the day with Sade in the forest. Katarina was having a grand time running around and chatting with him, but soon the sun began to set and they made their way back home. It was then Sade started to talk to Katarina about a mission he was being sent on tomorrow. Katarina thought no big deal of it. She was used to him going on missions every now and then, but Sade had to stop her and tell her that this time was different. This time Sade would be gone for much longer. When Katarina asked how long Sade was quiet for a moment before telling her that he would be going to Shurima and would be gone for a year.

Katarina froze in her tracks and started to cry as she hugged Sade tightly, begging him to stay. Sade reassured her that everything will be alright. It was an important mission that was going to take a long time, but he promised to write to her every week. While Katarina did not want him to leave, deep down she knew that it was what he had to do… for Noxus. And so, the two walked back home, Katarina leaning on Sade.

The next day Sade was gone and he would be gone for many more days after. Since he was gone Katarina's father was able to put his full focus onto Katarina. Her training became harder and more brutal. Her father became harsher towards her. Katarina was able to keep up and do all that her father put her through, which made him proud at times, but still she began to hurt mentally. The only thing seeming to keep her smiling were the letters she received from Sade every other week, but soon they began to come barely at all.

Katarina had turned fifteen now and her brother was still out on his mission. She knew this because of a letter from him explaining how he would be gone longer. It was after that last letter explaining his longer absence that they no longer began to show up. One, three, seven months had gone by and nothing. Katarina tried to keep any dark thoughts out of her head of what has possibly happened. All of the training she got from her father was a good distraction for her as well, even if it was brutal.

The eighth month had come with no letter. It seemed like the worst had happened, until a knock came at the door of the Du Couteau house. Katarina looked outside to see it was the messenger. She rushed outside to the man. Surely this was a message from Sade? But when Katarina opened the door the messenger did not have his usual half-Noxian smile, but rather a face of sadness. When he asked to speak to Katarina's father she had already known what this was about.

She ran to the forest as fast as she could, stopping for no one nor anything. When she reached the opening where her and Sade would play she collapsed onto the ground, crying out in sadness, anger, and pain. The one person who she loved and loved her was gone. She cried and cried for hours and ended up crying herself to sleep, lying against a tree.

Katarina awoke in the morning to the sounds of birds chirping and the sight of the sun shining through the tree's. She sat up against the tree's and sat in silence as she felt anger deep inside her. She grabbed a dagger from her belt and screamed out loud as she threw it in front of her, killing one of the chirping birds instantly. Now with the anger she felt inside was a deep emptiness… a void. There was only one way to fill this void and she knew what must be done. She retrieved her dagger from the dead bird. Staring at the blood covered blade Katarina knew that she must get revenge. She must avenge her brother and kill the person that killed him.

Katarina would return home not long after. She trained harder and more fiercely than before. Her father took notice and was soon sending her out on missions. Katarina would go out and do what she was told, assassinate who she must, but still remained certain to find her brother's killer and kill them herself.

"Without mercy…"