Attack on Titan is a Japanese cartoon.
An is a Japanese hand-drawn or computer animation . Outside Japan , anime is used to refer specifically to animation from Japan or as a Japanese-disseminated animation style often characterized by colorful graphics , vibrant characters and fantastical themes . is a Japanese manga series written and illustrated by Hajime Isayama . An anime television adaptation produced by Wit Studio and Production I.G aired in Japan on MBS between April and September 2013 and a second season of the series premiered in April 2017 .