In the bustling city of Fuyuki, a secret battle rages in the shadows. The Holy Grail War, a brutal battle royale, pits seven mages, known as Masters, against each other. Each Master summons a formidable warrior from various eras as their Servant, all vying for the ultimate prize: the Holy Grail, a wish-granting artifact. Emiya Shirou, an ordinary high school student driven by an unwavering sense of justice, finds himself unwillingly pulled into this deadly conflict. One evening, Shirou witnesses a fierce battle between Servants. The clang of steel and the crackle of magic fill the air as they clash. Mortally wounded in the chaos, Shirou is saved by the enigmatic Tohsaka Rin and her Servant Archer. In a desperate attempt to protect himself, Shirou accidentally summons his own Servant, Saber—a noble and beautiful knight with a mysterious past. As Shirou and Saber navigate the dangerous Holy Grail War, they form alliances and face numerous adversaries, each with their own ambitions and secrets. The bond between Master and Servant deepens as they confront perilous challenges and uncover hidden truths.

落叶岛世界观之下的第一作 男主角泉欣雨曾经是一个有希望站在奥运领奖台上的人 却在命运的捉弄下变成了一个家里蹲 百无聊赖的生活里，只有女朋友程璐给他带来点点的安慰 不过就在他以为这一切日常将持续下去的时候 在这个北京奥运会之前的最后一个春天—— 改变命运的机会悄悄的向他走来