War has erupted in Valoran. With relationships strained as Yasuo joins the League, Dark powers take root inside of Noxus. Commander Swain performs a coup upon the Institute and marches on the people of Demacia, Freljord, and Ionia. Only Three Heroes can stand between him and total annihilation. Riven, Yasuo, and Kira fight in the name of the Wind God Anima in order to defeat Swain.