In Another World with My Smartphone

In Another World with My Smartphone is a 2016 anime film. It is the fourteenth installment in the Anime Cinematic Universe, and the second installment of Phase Three.

Synopsis
In Another World with My Smartphone, the story of the world-famous gamer Touya Mochizuki whose life changes forever after a horrific car accident kills him. When traditional medicine fails to revive him, he is forced to look for healing, and hope, in an unlikely place - a mysterious other world known as Alephis. He quickly learns that this is not just a center for healing but also the front line of a battle against unseen dark forces bent on destroying our reality. Before long Touya -- armed with newly acquired magical powers - is forced to to choose whether to return to his life of fortune and status or leave it all behind to defend the world as the most powerful sorcerer in existence.

Plot
In the Kingdom of Belfast, Alephis, a group of rogue sorcerers infiltrate the Royal Library, an enclave that is known only to the Masters of the Mystic Arts. After beheading the librarian, the group's leader Akuto Sai steals a forbidden ritual from a book owned by his former mentor, Leen. As the Zealots escape through a portal to West City, Leen traps them in a Mirror Dimension that is invisible to the public. She takes down several Zealots but fails to stop Akuto and his surviving followers from escaping with the ritual.

In Amestria, Touya Mochizuki is an acclaimed gamer, but is also very arrogant and cares only for the wealth and success his talents bring. One night, as he travels to give a guest talk, he is involved in a car crash after diverting his attention from the road. He is killed in the crash. His former lover and co-worker Linze Silhoueska tries to revive him, but is unsuccessful. After months trying experimental methods to escape the Afterlife, Touya seeks out a mysterious figure, who mysteriously was able to travel between this world and the real world at will. The stranger directs Touya to the secret Royal Library, where he is taken in by another sorcerer under Leen, Elze Silhoueska. Leen shows Touya her power, revealing the Astral plane and other dimensions such as the Mirror Dimension. Touya begs her to teach him, and she eventually agrees despite his arrogance, which reminds her of Akuto Sai.

Touya begins his tutelage under Leen and Elze, and learns from the ancient books in the library which is now protected by the samurai Yae Kokonoe. It is explained that Earth is protected from other dimensions by a spell formed from three buildings called Sanctums, found in Amestria, West City, and Japan. The task of the sorcerers is to protect the Sanctums, though the mysterious figure from before chose to forgo this responsibility in favor of channeling energy into living again; Touya will have to decide between regaining his life and defending the world. Touya advances quickly over several months, even secretly reading from the forbidden texts and learning to bend time with a mystical Smartphone that also boosts his other magic abilities. Elze and Yae warn Touya against using such power and breaking the laws of nature, comparing his arrogant yearning for power to that of Akuto Sai, who believes that everyone should live as long as Leen after the deaths of his loved ones.

Akuto and his followers use the stolen pages to begin summoning the powerful Deus Ex of the God Dimension, where time does not exist and all can live forever. This destroys the West City Sanctum, and sends Touya from Alephis to the Amestria Sanctum in the real world. Akuto and the Zealots then clash there, where Touya holds them off with the mystical Coat of Levitation until Elze and Leen arrive. Touya and Elze become disillusioned with Leen after Akuto reveals that her long life has come from her own use of Deus Ex's power. Akuto mortally wounds Leen, and escapes to Alephis. Leen tells Touya that he too will have to break the rules, to balance out Elze's steadfast nature, before dying despite the best efforts of Touya and a bewildered Linze.

Touya and Elze arrive in Japan to find Yae dead and the Sanctum destroyed, with the God Dimension already engulfing Earth. Touya uses the Smartphone to turn back time and save Yae, before creating an infinite time loop inside the God Dimension that traps himself and Deus Ex in the same moment forever. After killing Touya many times to no avail, Deus Ex reluctantly agrees to leave Earth if Touya breaks the loop, taking Akuto Sai and his zealots with him. Disgusted by Touya and Leen's disregard for the consequences of defying nature, Elze severs all ties to Alephis and departs on her own. Touya returns the Smartphone, which Yae tells him is powered by a Dragon Ball, to Alephis, and then takes up residence in the Amestria Sanctum to continue his studies.

Sometime later, Touya is visited there by Son Goku, who has brought his brother Vegeta to Earth to search for their father Bardock. Elsewhere, Elze visits the mysterious figure and steals the energy he uses to walk, stating her intention to stop the continued misuse of power by Earth's sorcerers.