[Studio Q (Natsuka Q-ya)] Chikan Ishi Soushuuhen [Digital]

(SC56) [Studio Q (Natsuka Q-Ya)] Chikan Densha de Kyun x 2 ~ Sono2 Aoi-hen ~ (Kaitou Tenshi Twin Angel) [Digital]

[Studio Q (Natsuka Q-Ya, Sanuki Udon Jin)] Chikan Densha de Kyun 2 (Kaitou Tenshi Twin Angel) [Digital]

(C74) [Studio Q (Natsuka Q-Ya)] Chikan Otoko R Tama-nee (To Heart2)

[Studio Q] Tama-nee to Taisoufuku!! (ToHeart2)

[Studio Q (Natsuka Q-Ya)] Azu-Nyan 3 buruma ~ Ryoujoku Hen (K-ON!)

(C79) [Studio Q (Natsuka Q-Ya)] Houkago Chikan Time ~Omorashi Azunyan~ (K-ON!)

(C66) [Studio Q (Natsuka Q-Ya)] Tsukasa Aoshingou! (Ichigo 100%)

(C73) [Studio Q (Natsuka Q-Ya)] Chikan Otoko Soushuuhen

[Studio Q (Natsuka Q-Ya, Sanuki Udon Jin)] Chikan Otoko R Soushuuhen (ToHeart2) [Digital]