Shingeki no Kyojin OVA
No Regrets: Part 1[]
Attack on Titan: No Regrets (進撃の巨人リヴァイ外伝「悔いなき選択」 Shingeki no Kyojin Rivai Gaiden: Kui Naki Sentaku ?, Attack on Titan Levi Side Story: A Choice with No Regrets) is a spinoff manga illustrated by Hikaru Suruga and written by Gun Snark with a story based on the A Choice With No Regrets visual novel. This manga focuses on Levi, and serves as a prequel to the main story by Hajime Isayama. Kodansha USA announced that they will be releasing this manga starting in August, 2014.
In August, 2014 a new OVA series adapting the prequel manga Attack on Titan: No Regrets was announced. It will consist of two episodes, to be bundled with the 15th and 16th volumes of the main series, scheduled for release on December 9, 2014 and April 9, 2015, respectively. Just like the main anime series, it will be produced by Wit Studio with direction by Tetsurō Araki.