Following a devastating battle that scarred Fuyuki City, Shirou Emiya, a survivor with dreams of justice, finds himself thrust into the Fifth Holy Grail War. With the power to summon the heroic Saber, Shirou partners with Rin Toosaka to quell a murderous force haunting the city. As he navigates intricate family conflicts and his own emotions for Sakura Matou, Shirou must confront the dark truths of this mystical conflict.