Tengen Toppa Gurren Lagann: Otoko Ippiki-hen (天元突破グレンラガン 男一匹編) is a manga adaptation of the drama CD by the same name. Illustrated by Nono Yamasaki, it was published in MONTHLY HERO'S from August 1, 2013 to November 30, 2013. It is available to read for free on Pixiv Comic.