On Tamagotchi Planet, Mametchi has just finished his new creation. But on its first trial run, Kuchipatchi manages to throw the machine's aim off course, which results in a child from Earth, Tampopo, being transported to the Tamagotchi Planet.

The world is dying, no longer able to support life. The Ainsworth family can use the Holy Grail to save humanity, but the price of salvation is sacrifice of the magical girl Miyu — but Miyu’s brother, Shirou, won’t let them have her without a fight. Now it’s up to Illya to step in and find a solution that will save not only Miyu, but the entire world for impending doom. But when the price for the world's salvation is the life of a single, innocent girl, what will Illya choose?

Jack and Annie are young siblings who find a magic tree house on their way home after chasing a weasel. By using the books available on the tree house, they are able to travel through time and location. The two end up with the difficult task of collecting four medallions, each one hidden in a different place and epoch, in order to help a magician named Morgan.

In the World before, novice mage Shirou Emiya summoned and bonded with beautiful heroic spirit Saber as they became enmeshed in the battle for supremacy known as the fifth Holy Grail War. Fate, however, is a fickle mistress, and there was more than one way for that story to transpire. Now, in an alternate timeline, the pairing’s destiny becomes more tightly intertwined with that of high school student/secret Mage Rin Tohsaka and her Servant Archer. Even if you think you know what will happen next, prepare to be surprised as new twists await at every turn.

A strange disturbance in the World of the Living sends Ichigo and Kon to the Soul Society, where the Seireitei has been devastated by an explosion of reishi and Rukia is missing. Stranger still, none of the Soul Reapers remember Ichigo, and they think he’s the one responsible for the destruction. Now on the run, Ichigo is forced into a lonely battle in order to find Rukia and stop the real culprits!

In Karakura Town, unidentifiable spirits begin appearing en mases. While attempting to deal with these strange souls, Ichigo Kurosaki and Rukia Kuchiki meet Senna, a mysterious shinigami who wipes out most of them. Senna refuses to answer any questions, so Ichigo is forced to follow her while Rukia tries to find out what's going on.

Ten years after the Fourth Holy Grail War, a devastating clash between Masters and Servants, another war erupts. Shirou Emiya, whose father fought in the first battle, was leading a peaceful life with the warmhearted Sakura Matou. But when hidden forces begin to stir, Shirou resolves to fulfill his father’s dying wish, protect Sakura, and fight for the Holy Grail.

Shirou has lost his Servant, Saber, and is no longer a Master in the Holy Grail War. Despite this, he refuses to leave the battle, determined to protect Sakura. Meanwhile, a mysterious shadow engulfs the city, killing Masters and Servants one by one. As Shirou faces new dangers, Sakura is drawn deeper into her own destiny as a mage.

Despite his adoptive father's warnings that the girl found in the remnants of a destroyed city is too dangerous to be considered anything other than a tool or weapon, Shirou Emiya comes to treat Miyu as a younger sister. But when Shirou relaxes his guard and Miyu starts normal school, the Ainsworth family and their agents swoop in, kidnapping the girl with the goal of sacrificing her! Faced with the realization that Miyu's ability to do good will always be equaled by her capacity for destruction, Shirou must attempt to both rescue his adopted sister, and decide how to confront the threat that her powers will always pose.

The battle rages on as Shirou continues to protect Sakura, now consumed by the darkness. He joins forces with Rin to end the Holy Grail War, while Illyasviel, who knows the truth behind it, confronts her fate. Amidst the chaos, Zouken plots to manipulate Sakura for his own desires. The final fight begins.