(C71) [Celluloid Brothers (Kosugi Koutarou)] Chotto ecchi na iDOL M@NGA (THE iDOLM@STER) (C71) [セルロイド・ブラザーズ (小杉光太郎)] ちょっとHなiDOLM@NGA (アイドルマスター)

(CR33) [Koutarou With T (Various)] Girl Power Vol. 13 (Various)

(C91)[Nagisora Riku&Bocha] Roiyaru Honey (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [大友同好会]

(C71) [Koutarou With T (Koutarou)] GIRL POWER Vol.23 (Dead or Alive)

[Koutarou] B☆B☆IDOL

(C71) [Celluloid Brothers (Kosugi Koutarou)] Chotto ecchi na iDOL M@NGA - Nobody can Stop me (THE iDOLM@STER)

[Koutarou] B☆B☆IDOL expansion!!

(ComiComi15) [Ponkotsu Works (Theta)] Catherine to! | Together With Catherine! (Catherine) [English]

[Koutarou] B☆B☆IDOL expansion!! [English] {doujin-moe.us}

[Koutarou] B☆B☆IDOL Final Splash!!!

[Takatu] The Succubus Lady From Next Door Ch. 1-3 [Eng] {doujin-moe.us}