(Puniket 9) [Hirokaworld (Hirokawa)] Nyaa Hon

(C74) [Hirokaworld (Hirokawa)] Akiratama (Lucky☆Star)

[Hirokaworld (Hirokawa)] petta

(SC27) [Hirokaworld (Hirokawa)] 15/21 (3-nen B-gumi Kinpachi Sensei Densetsu no Kyoudan ni tate!)

Pachie-bon

[Hirokaworld (Hirokawa)] Neko Ebon Plus

(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 EVENT EDITION (Various)

(Puniket 21) [Hirokaworld (Hirokawa)] Kojikabon Plus (Kodomo no Jikan)

(Puniket 19) [Hirokaworld (Hirokawa)] Shiikibi (Various)

(CSP5) [OVACAS (Hirokawa Kouichirou)] Haru Matsuri Chichi Matsuri 2010 (Various)