(C70) [real (As-Special)] Must 3 (OS-tan)
[Kuroshikatei (Unno Hotaru)] MEx2K (OS-tan)
(ABC 2) [SAOTOME-Laboratory (Saotome Mondonosuke)] Sasekko OS Mix Aji (OS-tan)
(SC34) [Otona Star (Hiuma)] Otona OS 2／18 (OS-tan)
(Futaba Bunkasai) [Hinemosuan (Hinemosu Notari)] She Came in Through The Windows (OS-tan)
(Noiji Maniacs 2) [Sarurururu (Doru Riheko)] 1998 (OS-tan)
(C67) [waterwheel (Shirota Dai)] Hesitates Operating System (OS-tan)
(Futaba☆Bunkasai 2) [Jenoa Cake (TakayaKi)] Tadashii? OS no Atsukaikata 1 (OS-tan) [2nd Edition 2005-05-31]
(C68) [Jenoa Cake (Takayaki)] Tadashii? OS no Atsukaikata 2 (OS-tan) [English]
[Hagane Koubou (Haganemaru Kennosuke)] Mega x Opa (OS-tan)
