Pairs of masters and heroic spirits - also known as servants - have been fi-ghting across history in a series of Holy Grail Wars, with the winning duo receiving an ancient artifact that grants wishes. Fate/Samurai Remnant continues the epic Holy Grail War in the fourth year of the Keian Era, Edo Period Japan. A battle between seven pairs of masters and servants is about to begin as the "Waxing Moon Ritual" unfolds in the shadows. This is where the game's hero, Miyamoto Iori, a young man in Asakusa, -nds himself caught in the violence alongside his servant Saber, as they -ght to be the last pair remaining in order to receive the granter of wishes, the "Waxing Moon Vessel".