The Holy Grail is a treasure that can carry all the wishes in the world. In order to hold it in their hands, seven Masters made a contract with seven Heroic Spirits and devoted themselves to a deadly battle to kill each other. Emiya Shirou, the adopted son of the magician Emiya Kiritsugu, always has the flame of becoming a "partner of justice" burning in his heart. By chance, he summoned the swordsman Saber and got involved in this cruel dispute in the name of his master. However, when the unknown secrets of the Holy Grail War are peeled away and additional variables quietly come, where will this story intertwined with ideals and fate lead?
