(C65) [Naisho no Tsubomi (Unazuki Renge)] Naisho no Tsubomi (Various)
(C88) [Mama ni wa Naisho (Plasma Beach)] Chan nana no Shokutaku (GOD EATER)
[Sasahara Yuuki] Naisho no Happyoukai. - A Secret Recital | 秘密的发表会 [Chinese] [Digital]
[XX-ya tte koto wa Naisho da. (Naisho da.)] Doremi-sama Doremi-sama Doremi-sama (Ojamajo Doremi)
(Shotaket 11) [Studio Rakkyou (Various)] Tsubasa x4 no Naisho (Naisho no Yorimichi) [English]
[Sasahara Yuuki] Naisho no Happyoukai. - A Secret Recital [Digital]
(Shotaket 11) [Studio Rakkyou (Various)] Tsubasa x4 no Naisho (Naisho no Yorimichi)
(C90) [Mama ni wa Naisho (Plasma Beach)] Kinniku Bokujou (THE IDOLM@STER)
[Sasahara Yuuki] Naisho no Happyoukai. - A Secret Recital
(Shotaket 11) [Sorairo March (Narusawa Sora)] SECRET FILE (Naisho no Yorimichi)
