[Yokoyama Naoki] Siren -Kyousei Saimin Keitai- [English] [Doujins.com] [Digital]

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

[Yokoyama Naoki] Harpy4 ~Shuudan Saimin Menset~ (Siren ~Kyousei Saimin Keitai~) [Chinese] [Den個人漢化] [Digital]

[Yokoyama Naoki] Cockatrice ~Kuro Majutsu Sei Kouhou~ (Siren ~Kyousei Saimin Keitai~) [Chinese] [Menethil个人汉化]

[Yokoyama Naoki] Siren ~Kyousei Saimin Keitai~ [Chinese]

[Yokoyama Naoki] Cockatrice (Siren -Kyousei Saimin Keitai-) [English] [naxusnl] [Digital]

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

[Grace (Yokoyama Naoki)] Yokoyama Naoki ni yoru Yokoyama Nao no Eroi Hon (THE IDOLM@STER MILLION LIVE!) [English] {doujin-moe.us} [Digital]

[Yokoyama Naoki] Siren -Kyousei Saimin Keitai- [Digital]

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

[Yokoyama Naoki] Siren ~Kyousei Saimin Keitai~ [Chinese]