Another lovely summer goes by for Illyasviel von Einzbern. Taking a break from her magical girl duties, she enjoys her time off after collecting the Class Cards with her best friend Miyu Edelfelt. However, her break comes to an abrupt end when she and Miyu are abducted by Rin Toosaka and Luviagelita Edelfelt, while out with her friends. The magical girls learn that their work is far from over, as Clock Tower informs them that the out of control mana thought to have been sealed continues to be dispersing throughout Fuyuki City. After heading to the origin point of the out of control mana, Illya and Miyu are tasked with solving the anomaly. But after casting their spell, Illyasviel discovers that she's split into two people! As this mysterious new form darts off, she can only wonder: what is to come from the existence of her dopplegänger, running amok in the unsuspecting town?

Short specials included with the Blu-ray/DVD releases of the TV series.

After succumbing to an unenviable fate, Kiritsugu Emiya has left Shirou Emiya the duty to save mankind in his place. The world is dying and time is ticking, but when the salvation Shirou seeks is at the cost of his only family left—his younger sister—will he still have the heart to pursue this duty? Shirou is now pressed with the choice to continue being a hero of justice—or become the very evil his ideal has vowed to vanquish. The orphan is alone once again, yet his body is still made of swords. The Fifth Holy Grail War now begins with his oath under snow.

In Fuyuki City, the Fifth Holy Grail War is about to commence a lengthy battle of blood, death, and misery. High school student Rin Toosaka has trained her entire life for this moment—to become a magus capable of being a Master in the war. Summoning her Servant known as Archer, Rin finally sets foot into the battle. Discovering that one of her acquaintances, Shirou Emiya, is drawn into the war as well, Rin offers to form an alliance for the time being. And as the two of them grow closer, Rin begins to learn more about Shirou's fate and ideals. Nevertheless, her goal remains the same: to win the all-powerful relic that can fulfill the wishes of those who are victorious after the war—the Holy Grail.