(Shotaket 10) [Hiroshi Ogawa] Boys Factory 21 [緒河悠] Boys Factory / 保健教育２１

(C63) [Boys Factory (Riki, Ogawa Hiroshi)] Boys Factory 13

(Shotaket 8) [Boys Factory (Riki, Ogawa Hiroshi)] Boys Factory 14

(Shotaket 12) [Boys Factory (Riki, Ogawa Hiroshi)] Boys Factory 29.7 (Steamboy, Naruto, Gurren Lagann)

(C71) [Boys Factory (Riki, Ogawa Hiroshi)] Boys Factory 29

(C64) [Boys Factory (Riki, Ogawa Hiroshi)] Boys Factory 15

(C75) [Boys Factory (Riki, Ogawa Hiroshi)] Boys Factory 31

(Shotaket 7) [Boys Factory (Hiroshi Ogawa, Takenokoya)] Otokogaikomonteki Seiai Yuugi (?) / Homosexual's Boys Think Sex to Be Play

(C67) [Boys Factory (Riki, Ogawa Hiroshi)] Boys Factory 20

(C74) [Boys Factory (Riki, Ogawa Hiroshi)] Boys Factory 30

(C69) [Boys Factory (Riki, Ogawa Hiroshi)] Boys Factory 23