Blue Exorcist: The Movie

In the city of the Academy of True Cross, there are on going preparations for the Festival that is celebrated every 11 years. It is, in fact, narrated that centuries ago a demon lived in a small village, who gained the simpathy of the villagers. As a consequence, the village lost all of their goods after leaving their lands unattended, as the outcome of spending all their time with the demon.

An exorcist arrived then to seal the demon forever and protect the village again.

In the present time Yukio, Shiemi and Rin are sent on a mission to exorcise the ‘Phantom Train’, that loses control after Rin and Shiemi try to save the ghosts that are unconsciously trapped in it forever. Meanwhile, under the city, the magic barrier to repel the demons, are being created by the other exorcists.

After the fight that ensues, a piece of the Phantom Train demon is able to escape underground and in the search for it, Rin encounters a little demon with a childlike appearance, that he will later name Usumaro. Usumaro is taken hostage by the exorcists but Rin, opposing to his procession to death, will be given the duty to look after him while the ongoing preparations for the festival are taking place and to which, mysteriously, the little demon is linked to.

Usumaro is in fact a benevolet kami that became a demon after suffering the pain of being betrayed and abandoned by the villagers he cared for; he uses his power to erase the bad memories from people's mind in order to make everyone live through happiness. While living with Rin, he uses his power to make him and his other exorcists friends, forget about sudden tasks they have to attend to but that are too bothersome. The child demon is slowly gaining a place in the Okumura family, creating a close bond with Rin and his friends.

Chaos ensues when due to Usumaro's magic, the exorcists forget about their job with the purpose of attending the big Festival. In no time, the city is infested with demons.

It is under these circumstances that Rin discovers Usumaro's power and understand that he is the same demon of the tale his father, Fujimoto, shared with him and Yukio when they were only children. Thanks to their friendship, Rin is able to make Usumaro understand how valuable memories are, even the painful ones, making him promise to never use his power again, to which the little demon agrees.

Although Rin accepts Usumaro as part of his family, the little demon decides to sacrifice himself to protect Rin, breaking his promise to never use his power again, due to the demons taking control of the city.

In the end, everyone seems to forget about his existence and the chaos occurred during the festival. But Rin seems to remember him and will visit Usumaro's Temple, promising him that ‘he will never forget him’.

In September 2011, an anime film adaptation of Kazue Kato's manga series Blue Exorcist was greenlit.[3] In March 2012, Atsushi Takahashi was announced to be directing the film at A-1 Pictures, along with Reiko Yoshida as the screenwriter, Keigo Sasaki as the character designer, and Shinji Kimura as the art director.[4] The cast of the 2011 anime television series Blue Exorcist returned to reprise their roles for the film,[5] with Rie Kugimiya and Hidenobu Kiuchi joining them in October 2012 to respectively voice the new characters Usamaro, a boy demon, and Cheng-Long Liu, an exorcist from Taiwan.[6] The English dub cast also reprised their roles for the film.[7]

In March 2012, Hiroyuki Sawano was announced to be composing Blue Exorcist: The Movie, after previously doing so for its anime television series.[4] UVERworld also returned in October 2012 to perform the film's theme music titled "Reversi".[6][8] The film's original soundtrack was released in Japan on December 19, 2012.[9]

• Official website (in Japanese)
• Blue Exorcist: The Movie at Anime News Network's encyclopedia