Shingeki no Kyojin

is a Japanese manga series written and illustrated by Hajime Isayama. The series began in Kodansha's Bessatsu Shōnen Magazine on September 9, 2009, and has been collected into 21 tankōbon volumes as of December 2016.

The spin-off light novel series, Before the Fall began in December 2011 and has received a manga adaptation. Three additional light novel series and four additional spin-off manga series have also been created. A television anime 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. Four video game adaptations developed by Nitroplus staffers in collaboration with Production I.G were announced to be released as bonus content for the third and sixth volumes of the Blu-ray Disc release of the anime, with another game developed by Spike Chunsoft for the Nintendo 3DS. A two-part live-action film adaptation, Attack on Titan and Attack on Titan: End of the World, and a live-action web-series were released in 2015. An anime adaptation of the Junior High spin-off manga, produced by Production I.G, began airing in October 2015. Attack on Titan and all five spin-off manga are published in North America by Kodansha Comics USA, while the three novel series are published by Vertical. The anime has been licensed by Funimation for North America, by Manga Entertainment for the UK, and by Madman Entertainment for Australia.

Attack on Titan has become a commercial success. As of March 2017, the manga has 63 million copies in print. The release of the anime also saw a boost in the series' popularity, with it having received critical acclaim for its atmosphere and story. Although it also gained fame in neighboring Asian countries, the series' themes have been a subject of controversy.

Plot
Several hundred years ago, humans were nearly exterminated by titans. Titans are typically 3-15 meters tall, seem to have no intelligence, devour human beings and, worst of all, seem to do it for the pleasure rather than as a food source. A small percentage of humanity survived by walling themselves in a city protected by extremely high walls, even taller than the biggest of titan. Flash forward to the present and the city has not seen a giant in over 100 years. Teenage boy Eren and his foster sister Mikasa witness something horrific as the city walls are destroyed by a colossal titan, which is roughly 60 meters tall, that appears out of thin air. As the smaller titans flood the city, the two kids watch in horror as their mother is eaten alive. Eren vows that he will murder every single titan and take revenge for all of mankind. Nominated for the 4th Manga Taisho Awards (2011) and won the Kodansha Manga Award shōnen category (2011).

Official

 * Official manga website
 * Official anime website
 * Official twitter

Other Sources

 * Wikipedia
 * Anime News Network