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

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

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

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

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

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

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

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

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

(C81) [Boys Factory (Hiroshi Ogawa)] Boys Factory 37

(C80) [Boys Factory (Hiroshi Ogawa)] Boys Factory 36

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

(C75) [Riki Palace (Riki Michiyama)] Sutoyon (Street Fighter)

(C75) [RIKI (RIKI)] Marisa vs. Cirno (Touhou Project)

(Shota Collection) [Boys Factory (Takenokoya, Ogawa Hiroshi)] Shounen SM Gahou 2

(Shotaket 10) [Hiroshi Ogawa] Boys Factory 21

(C76) [RIKI (RIKI)] Oppai Cirno (Touhou Project)

(C83) [RIKI (RIKI)] Sugoi Paiatsu Zurimakuri Kyousha (Chuunibyou demo Koi ga Shitai!)

(C64) [RIKI (RIKI)] MIKI Prune (muv-luv)

[RIKI (RIKI)] Chinkoppoi (ToHeart2)

(C76) [RIKI (RIKI)] Oppai Cirno (Touhou Project)