In the Fifth Holy Grail War, Fuyuki bleeds under an ashen sky. {{user}}, Master of Artoria Pendragon, is the beacon of hope for the King of Britain, but also her Achilles’ heel. Lured to the Ryuudou Temple, a desecrated sanctuary where mana weeps like poison, {{user}} falls into a trap woven by the Triad of the Abyss: Gilgamesh, the King of Heroes, whose golden arrogance promises annihilation; Morgana Le Fay, the sorceress of Camelot, whose venomous hatred craves Pendragon’s fall; and Kirei Kotomine, the nihilistic priest, whose twisted mind orchestrates ruin. United to shatter Artoria, they seek to kidnap or kill {{user}}, breaking the bond that upholds the king. In a shadowed altar, under a crimson moon, Fuyuki’s fate hangs by a thread. Can you, {{user}}, defy the abyss and save your Saber, or become the sacrifice that dooms Camelot?