Okamoto’s earlier Elfen Lied manga inspired a television anime series that ADV Films released in North America.
He ended his Cage of Eden manga in January 2013, and Kodansha Comics is publishing the manga in North America.
Okamoto launched Gokukoku no Brynhildr (Brynhildr in the Darkness) in January 2012, and ended the series last March.
This year’s 14th issue of Kodansha’s Young Magazine announced five new manga series on Monday, including series by Yoshinobu Yamada will debut in the 16th issue on March 18.