Terror in Resonance

Terror in Resonance (残響のテロル, Zankyō no Teroru, lit. "Terror of the Echo"), also known as Terror in Tokyo, is a Japanese anime television series produced by MAPPA. The anime was directed by Shinichirō Watanabe, with character designs by Kazuto Nakazawa and music by Yoko Kanno. The anime began airing on Fuji TV's Noitamina block on July 10, 2014 and its final episode aired on September 25, 2014. In total, it was made up of 11 episodes. Funimation acquired North American streaming rights and released an English dub on DVD on January 19, 2016. Anime Limited and Madman Entertainment acquired streaming rights for the UK and Australia, respectively. Funimation premiered the series at Anime Expo on July 5, 2014.

Plot
In an alternate version of the present, Tokyo has been decimated by a shocking terrorist attack, and the only hint to the identity of the culprit is a bizarre video uploaded to the internet. The police, baffled by this cryptic clue, are powerless to stop the paranoia spreading across the population.

While the world searches for a criminal mastermind to blame for this tragedy, two mysterious children—children who shouldn't even exist—masterfully carry out their heinous plan. Cursed to walk through this world with the names Nine and Twelve, the two combine to form "Sphinx," a clandestine entity determine to wake the people from their slumber—and pull the trigger on this world.