[Yokoyama Naoki] [Yokoyama Naoki] Harpy Ch. 1-3 [Digital]

(C86) [Grace (Yokoyama Naoki)] Million Back Dancer-tachi no Otona no "Settai" Gasshuku | Million Back Dancers Adult "Entertainment" Camp (THE IDOLM@STER MILLION LIVE!) [English] {doujin-moe.us}

(C87) [Grace (Yokoyama Naoki)] Million Back Dancer-tachi no Otona no "Settai" Gasshuku 2 (THE IDOLM@STER MILLION LIVE!)

[Grace (Yokoyama Naoki)] Serika to Iku to Momoko no Otona no "Settai" Gassyuku | Serika, Iku, and Momoko's Adult "Entertainment" Camp (THE IDOLM@STER MILLION LIVE!) [English] {doujin-moe.us} [Digital]

[Grace (Yokoyama Naoki)] Yokoyama Naoki ni yoru Yokoyama Nao no Eroi Hon (THE IDOLM@STER) [Digital]

[Grace (Yokoyama Naoki)] Zettai Fukujuu! Ousama Game to Rin-chan Now! (THE IDOLM@STER CINDERELLA GIRLS) [English] {doujin-moe.us} [Digital]

[Yokoyama Naoki] Sleipnir ~ Kyousei Suimin Keitai ~ (COMIC Grape Vol. 6) [English] [Facedesk] [Digital]

[Yokoyama Naoki] Harpy2 ~Saimin Choukyou Keitai~ (COMIC Grape Vol. 19) [Chinese] [Den個人漢化] [Digital]

[Yokoyama Naoki] Harpy ~Shuudan Saimin Keitai~ (COMIC Grape Vol. 13) [Chinese] [Den個人漢化] [Digital]

[Yokoyama Naoki] Harpy3 ~Saimin Kanyuu Keitai~ (COMIC Grape Vol. 22) [Chinese] [Den個人漢化] [Digital]