Hey everyone, how are you? I decided to do this story as a advice from Deathjest(Thank you :D)
So, basically it will focus on all the events that led to Burden, that drabble I made about Garen and Katarina
Hope you enjoy it

The young and innocent Katarina was running towards the Noxian High Command's Main Chambers, where her father, the renomated Grand General Marcus Du Couteau was waiting. She was bound to receive her first assassination mission. Despite being born a Noxian, she was pure, and never had someone's blood on her hands. Upon arriving, she opened the door and bowed to him. Even tough he was her father, she knew his rank was ways above hers. In the middle of the room was a dark and long wooden table, and twelve chairs, all of them with beautiful designs. On one of the walls, there was a perfect map of all of Runeterra illuminated by a few chandeliers that were strategically placed inside the room. Katarina saw her father looking intensely into it. "Good, he is distracted."
Trying to make a swift approach and surprise him, she tiptoed until half of the way, before being cut off by him.

"Katarina, did you really believe I did not see you there? I am the Grand General. I did not attain this position letting my guard down so easily. It was honestly stupid." Katarina was surprised by his words. He never treated her that way. Being his older daughter, she was always given more love and attention than Cassiopeia. The latter, after some time, learned that Katarina had earned her father's attention due to everything achieved as a assassin in training. Katarina shifted her left foot behind, surprised.

"But, dad-
"No but's, your actions were flawed. The battlefield allows no flaws. Your mission is on that letter. Now go, I have important things to do." He said, handing a small letter to her.
Katarina, bowing, left the room, and went to her chambers. "What is going on with him? Is something going on? Why did he treat me like that?" Upon reaching her room, she opened the letter. It read:

Hello, Katarina.
Your first task is to prove yourself to the Noxian Council and High Command.
Scouts show that there is a Demacian encampment to the west. Spies reports say that the high ranking officer acting in there is going back to Demacia, and a medium rank has been dispatched took his place. Your job is to eliminate the officers before they assemble the troops and begin taking any hostile actions towards Noxus.
Scouts say that the encampment shifts guards every morning. So it's better if you act during that time. Good luck.
Blood for Noxus.

"Ok, so I should depart right now, to reach the encampment tomorrow morning" She tought to herself. After having packed her throwing daggers, she picked up two knives her father had ordered the best blacksmiths forge exclusively to her. Having packed up, she proceeded to the gates, were a soldier was waiting with a horse. Since she had experience in riding horses, it was a easy task getting up on it. Then, she departed, heading west, where the encampment was.

Katarina had to hurry, or else she wouldn't get there by morning. Taking small breaks, she managed to administer her time and got near the encampment in time. Taking position near it, she used her Shunpo to teleport inside, and started listening at the conversation two soldiers were having. At one point, they began discussing why the general was still there. That moment, Katarina's eyes widened. She had the chance to kill two birds with one stone. Acting quickly, she dispatched the guards and made her way to what seemed like the main tent. In there, she saw the general looking intensely at a map of the region. Slowly, she approached him, and just as she was about to stab him, he turns, avoiding the attack. Yelling for help, he unsheathes his sword and swings in at her. She almost isn't able to dodge the attack, due to the difference in combat experience they had. The fight continued for a few seconds, before the redhead saw a opening in his defense and went for it, killing him. Then a lot of soldiers rushed into the tent, alongside the low ranked officer. He carried a sword just about his size, his armor was giant and he had short brown hair. Katarina could dispatch the soldiers with her throwing knives, but the officer's armor kept him unharmed.

"DEMACIAAAAA" He yelled, before chasing after her, that was leaving the room through a hole in one of the tent's walls. He kept chasing her for a few minutes, arriving at a forest. Both took battle stance, with the bulky man swinging at her. Ducking, she avoided the swing, but he swung again quickly, and she stumbled, but avoided it. Using her Shunpo, she teleported behind him, kicking a less covered part of his armor, that sent him backwards. Using the opportunity, she threw a few more daggers, that lodged themselves into his armor. Katarina used her shunpo again, but he reacted quickly, swinging up his sword at her. She didn't have time to react, as the almost hit her eye, and left a long cut on her face. Blood started pouring out, leaving her eye useless temporarily. The soldier hit her with the hilt of the blade, knocking her to the ground. Seeing no possible ways of escape, Katarina just closed her still functional eye and waited for her death.

But the soldier couldn't bring himself to do it. The aspect of finding someone whose skills match yours is something that every soldier looks forward. And if he killed her, he would lose a worthy foe.
"Go away, Noxian filthy scum." He said, lowering his massive sword. Katarina opened her eye to see him going away.
"What is your name, Demacian lapdog?" She shouted, looking at him. Turning back, he said one word, a word that would mark her forever. "Garen." Was all he said before disappearing back into the forest. Getting up, she passed her hand over the wound he inflicted on her. It was bad, very bad. It would leave a scar, a nasty one. Turning around, the assassin went in the direction she had left her horse. Mounting it, she rode back to Noxus, wounded, but proud of having made a Demacian general fall to her blades.