[Galaxy Monooki (Hanaduka Ryouji)] Nia Drill Break (Tengen Toppa Gurren Lagann) [Digital] Hentai [ギャラクシー物置 (華塚良治)] ニアどりるぶれいく (天元突破グレンラガン) [DL版]

(C72) [ESSENTIA (Fujima Takuya)] GIGA DRILL BREAK (Tengen Toppa Gurren Lagann) [English]

(C85) [Galaxy Monooki (Hanazuka Ryouji)] Yuukarin ga Seme Sasete Kureru Hon (Touhou Project) [English] [EHCOVE]

(C72) [Shioya (Shioya Maico)] Nia no Drill tte nandesu ka? (Tengen Toppa Gurren Lagann)

[uraWASABI (Hinoki)] Drill no Ana wa Futatsu Aru (Tengen Toppa Gurren Lagann)

[Galaxy Monooki (Hanaduka Ryouji)] Yuukarin ga Seme Sasete Kureru Hon 3 (Touhou Project)

(SC36) [Leaz Koubou (Oujano Kaze)] Drill Hime Rape (Tengen Toppa Gurren Lagann)

(C77) [SFLAKE (Yukimitsu)] Nia Ero ~Nia-chan no Ecchi na Hon~ (Tengen Toppa Gurren Lagann)

(C72) [OHTADO (Oota Takeshi)] Rasen no Miyako no Ohimesama! (Tengen Toppa Gurren Lagann)

(C72) [ESSENTIA (Fujima Takuya)] GIGA DRILL BREAK (Tengen Toppa Gurren Lagann)

(C72) [life & Digital Flyer (Haga Yui, Oota Yuuichi)] DIGITAL LIFE 2007 SUMMER (Lucky Star, Melancholy of Haruhi Suzumiya)