(C64) [YOUKI M.K.C. (Youki Akira, Saeki Tatsuya)] U wa Uchuu no Stellvia no U (Uchuu no Stellvia) Hentai (C64) [優希M.K.C. (優希輝、佐伯達也)] ウは宇宙のステルヴィアのウ (宇宙のステルヴィア)

[YOUKI M.K.C. (Saeki Tatsuya)] Ichigo Maharito (Ichigo Mashimaro)

(Kyonyukko 5) [YOUKI M.K.C. (Matsuda K, Saeki Tatsuya, Youki Akira)] U wa Uicchibureido no U | W is for Witchblade (Witchblade)

(C64)[Daihonei (TYPE.90)] EMPIRE HARD CORE 3 (Uchuu no Stellvia)

(C64) [Daihonei (TYPE.90)] EMPIRE HARD CORE 3 (Uchuu no Stellvia) [English] [Angel777]

(Puniket 11) [Youki M.K.C. (Youki Akira, Saeki Tatsuya, Matsuda K)] Yurumite (Fushigiboshi no Futagohime)

(C64) [YOUKI M.K.C. (Youki Akira)] Uha Uchuu no Suteruvia no U (Uchuu No Stellvia / Stellvia of the Universe)

(C62) [YOUKI M.K.C (Youki Akira, Saeki Tatsuya)] Chiisaiko wa Suki desu ka (Figure 17)

(C64) [Arrow Island (Gekka Saeki)] ~S.D~ (Stellvia of the Universe & Demonbane)

[Youki MKC] Galaxy Angel Fanbook Doki Doki Chou Gentei Babanga Ban! (Galaxy Angel)

(C69) [Youki M.K.C. (Youki Akira, Matsuda K, Saeki Tatsuya)] Yurumite 2 (Fushigiboshi no Futagohime)