(Naisho no Jikan) [Apricot Sirup (Hi~mosu, Marui)] Doki Doki Kodomo Time (Kodomo no Jikan)
(Shotaket 11) [Studio Rakkyou (Various)] Tsubasa x4 no Naisho (Naisho no Yorimichi) [English]
(Puniket 13)[UROBOROS] OTONA NO JIKANWARI ('05.winter) A SUPPLEMENT ex.1 KURO chan (Kodomo no Jikan)
(C75) [Namakoya (Bibandamu, FARGE)] Kodomo no Jikangire (Kodomo no Jikan)
(C72) [C@T Slash (Kahama Youko)] Naisho no Jikan (Kodomo no Jikan)
(Shotaket 11) [Studio Rakkyou (Various)] Tsubasa x4 no Naisho (Naisho no Yorimichi)
(Puniket 16) [65535 Avenue (Akahito)] Kokuhaku no Jikan ~Kokuhaku no Jikan Bon Soushuuhen + α~ (Kodomo no Jikan)
(C72) [kidnap company (Saitou Tsukasa)] Himitsu no Gashuu - Naisho no Jikan (Kodomo no Jikan)
(C69) [UROBOROS (Utatane Hiroyuki)] Otona no Jikanwari (Kodomo no Jikan)
[XX-ya tte koto wa Naisho da. (Naisho da.)] Doremi-sama Doremi-sama Doremi-sama (Ojamajo Doremi)
