Set in the world of Runeterra, this turn-based role-playing adventure unfolds between the lawless pirate city of Bilgewater and the cursed, undead-haunted Shadow Isles. Each year a supernatural force called the Black Mist rolls across the sea in a dreaded event known as the Harrowing, dragging fresh souls into torment, and lately the Harrowings have been growing worse. When the Mist strikes Bilgewater once more, an unlikely group of champions is drawn together to confront its source. Among them are the fearsome captain Miss Fortune, the devout priestess Illaoi, the stalwart protector Braum, the wandering swordsman Yasuo, the mysterious fox-woman Ahri, and the undying killer Pyke. Each carries their own scars, ambitions, and reasons for the journey. Setting sail from Bilgewater into the perilous Shadow Isles, this uneasy alliance must set aside their differences and venture into the heart of the Black Mist to uncover the dark power behind it.