Character 2k-tan12

(Futaket 7) [Otona Star (Hiuma)] Otona OS W (OS-tan)

(C67) [waterwheel (Shirota Dai)] Hesitates Operating System (OS-tan)

[Hagane Koubou (Haganemaru Kennosuke)] Mega x Opa (OS-tan)

[G-Power] Sukoderu Teinkouzu (OSTan)

(SC34) [Otona Star (Hiuma)] Otona OS 2／18 (OS-tan)

[Deja vu Artworks] Kyouyuu Foru DA! SE (OS tan)

(C67) [G-Power! (SASAYUKi Gody)] Sukoburu Teinkouzu SP2 (OS-tan)

(C70) [Otona Star (Hiuma)] Otona OS Nettouhen (OS-tan)

(C67) [Ekesetene. (Sugawara Tsukasa)] Update Shimasuka? (OS-tan)

Shori wo Zokkou Shimasuka

[Kuroshikatei (Unno Hotaru)] MEx2K (OS-tan)

[Heston World (Kawara Shuukei)] Can't Stop! Debuggin'! (OS-tan)