[Yokoyama Naoki] Sleipnir ~ Kyousei Suimin Keitai ~ (COMIC Grape Vol. 6) [English] [Facedesk] [Digital]
[Grace (Yokoyama Naoki)] DreClu! (DREAM C CLUB) [Digital]
[Grace (Yokoyama Naoki)] Project "Girigiri Satsueikai" Krone de Rin-chan Now! (THE IDOLM@STER CINDERELLA GIRLS) [Digital]
[Yokoyama Naoki] Tauros ~Saimin Hitozuma Netori~ | Tauros ~Hypnotism Wife NTR~ (COMIC Grape Vol. 45) [English] [desudesu]
[Grace (Yokoyama Naoki)] Koto Megu Elena no "Otona no Settai Gasshuku" ni Try Star (The IDOLM@STER MILLION LIVE!) [Digital]
[Yokoyama Naoki] Wifes (Wifes) [English] [Team Koinaka] [Digital]
[Yokoyama Naoki] Siren -Kyousei Saimin Keitai- [English] [Doujins.com] [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}
[Grace (Yokoyama Naoki)] "Settai" Gasshuku!? Love Generation de Rin-chan Now! (THE IDOLM@STER CINDERELLA GIRLS) [Digital]
[Grace (Yokoyama Naoki)] Million Back Dancer-tachi no Otona no "Settai" Gasshuku 2 (THE IDOLM@STER MILLION LIVE!) [Digital]