[Kaoru System (Morishita Kaoru, Hanai Kaoru, Suzuki Ganma)] Signorina (Tobe Isami, Magic Knight Rayearth, Romeo's Blue Skies)

[NEKOYA-SYSTEMZ (Okazaki Nao)] Nano-chin ☆ Fa-chin ++ (Plus Plus) (Mahou Shoujo Lyrical Nanoha) [Digital]

(C63) [Nekoya-Systemz (Okazaki Nao)] Puripuri (Sister Princess)

(C73) [NEKOYA-SYSTEMZ (Okazaki Nao)] Ikutsu ni Nattemo Mahou Shoujo desu ga Nani ka (Mahou Shoujo Lyrical Nanoha)

(C65) [NEKOYA-SYSTEMZ (Okazaki Nao)] San de ja pon! ~ Nichiyobi no asa wa moete iru ka ~ (Ashita no Nadja)

[NEKOYA-SYSTEMZ (Okazaki Nao)] Nano-chin ☆ Fa-chin ++ (Love Love) (Mahou Shoujo Lyrical Nanoha) [Digital]

(C65) [NEKOYA-SYSTEMZ (Okazaki Nao)] San de ja pon! ~ Nichiyobi no asa wa moete iru ka ~ (Ashita no Nadja)

(C63) [Nekoya-Systemz (Okazaki Nao)] Puripuri (Sister Princess)

[Nekoya Systemz (Okazaki Nao)] Ero Ero ☆ Fairy no Hon! (Wagamama Fairy: Mirumo de Pon!)

(SC19) [Nekoya-Systemz (Okazaki Nao)] Poyoppoyo (Sister Princess)