Sorry I made a mistake last time! This should be the correct story! This is an introspective Kagami story which means it mostly happens in her memories and thoughts.
The Du Couteau family is forced out of their estate in Noxus when Swain forcefully takes over. Swain plans to take over all of Valoran. Will Katarina get the revenge she wants, or is there more going on? (Kat x Lux don't like the pairing? don't read) Multiple pairings some gxg some gxb. There is CHARACTER DEATH you are warned. This is the rework.
The Institute has come up with a solution to city-state hostilities, or so they think. Katarina, on the other hand, just wants some rest after a long day, but when she finds out she is to partake in the experiment she is upset. It doesn't help that this solution is pairing up two champions and forcing them to live together. It gets even worse when she discovers her roommate. YURI!