Book of concluded Otoko Ippiki-hen school manga to ship 1 day before

The January issue of Monthly Hero's magazine announced on Saturday that the Tengen Toppa Gurren Lagann: Otoko Doahō!-hen (Tengen Toppa Gurren Lagann: Total Idiot Man!) baseball manga will launch in the next issue on December 28. Gurren Lagann writer Kazuki Nakashima is credited with the script; he wrote the original Otoko Doahō! Gurren Lagann drama CD that was bundled with the Gurren Lagann anime's DVDs. Saki Nonoyama (Enma) will draw the art.

The story re-imagines the characters of the anime as baseball players at Dai-Gurren Academy, and they meet a mysterious old man over a bowl of ramen with roast pork.

The Tengen Toppa Gurren Lagann: Otoko Ippiki-hen (Tengen Toppa Gurren Lagann: Lone Man) manga ended in the same January issue. Like Otoko Doahō!-hen , Nonoyama adapted Otoko Ippiki-hen from a drama CD that was bundled with the anime's DVDs. Hero's and Shogakukan Creative will publish the compiled book volume of Tengen Toppa Gurren Lagann: Otokoippiki-hen on December 27.

Otoko Ippiki-hen launched in the magazine's September issue this year. The story takes the cast of Gainax's robot anime and puts them in modern-day Japan. It follows the adventures of Kamina and other characters who attend Dai-Gurren Academy.

Manga creator Kotaro Mori's manga adaptation of the original television series ended in May. Mori launched the manga in MediaWorks' Monthly Dengeki Comic GAO! magazine in April 2007, and the series was later moved to the publisher's Monthly Comic Dengeki Daioh magazine in 2008. Bandai Entertainment released six volumes of the series in North America before the company stopped producing and distributing new DVD, Blu-ray Disc, and manga releases in January 2012. MediaWorks shipped the ninth volume of the series in Japan in September.

Previous manga inspired by the anime include the Tengen Toppa Gurren Lagann: Guren Gakuenhen school manga and the Tengen Toppa Gurren Lagann: Rasen Shōnen-tan (Spiral Boy) manga that takes place in a parallel world. Both manga were republished as single-volume compiled book releases.