Also: main manga series has 7 million copies in print

The June issue of Kodansha's Monthly Shonen Magazine is revealing on Tuesday that Takaya Kagami, Yamato Yamamoto, and Daisuke Furuya's Seraph of the End (Owari no Seraph) manga is getting a spinoff manga titled Owari no Seraph: Ichinose Guren, 16-sai no Catastrophe (Seraph of the End: Guren Ichinose: Catastrophe at Sixteen) starting in the magazine's July issue on June 6.

Yō Azami is drawing the manga, Kagami is credited with the original work, and Yamamoto is credited with the original character designs. The first chapter will feature an opening color page.

The manga adapts Kagami's novel series (pictured at right) of the same name, and will center on the character Guren Ichinose when he was a young man. Kodansha published the novel series' seventh volume in December. Vertical publishes the novel series in English, and it published the third omnibus volume in September.

The June issue is also revealing on Tuesday that the main Seraph of the End manga series has 7 million copies in print.

The main manga's story takes place in a world where an unknown virus has killed the entire human population except for children. Those children were then enslaved by vampires. The manga centers on Yūichirō Hyakuya, a human who dreams of becoming strong enough to kill all vampires.

Kagami, Yamamoto, and Furuya launched the manga in Shueisha's Jump SQ. magazine in 2012, and Shueisha published the manga's 13th compiled volume in December. The manga's 14th volume will ship on May 2 in Japan. Viz Media publishes the manga in North America digitally in its Weekly Shonen Jump anthology and in print, and the company published the 11th compiled volume on January 3.

The manga inspired a 12-episode television anime series in April 2015, and Funimation streamed the anime as it aired, and released the series on home video in May 2016.

The 12-episode second season of the anime, Seraph of the End: Battle in Nagoya, premiered in October 2015. Funimation streamed the anime as it aired in Japan, and released the series on home video in September.