Sekai Oni
Manga
Sekai Oni is a Japanese manga by Jun Okabe, serialized on Ura Sunday (Shogakukan) from July 2, 2012 to June 1, 2015, and also on Shogakukan's comic app Manga One from December 2014.
Translated from the Japanese Wikipedia article, available under CC BY-SA 4.0. Translated and shortened by ManhWatch AI; may contain errors.