[Mental Specialist (Watanabe Yoshimasa)] Blue White (Xenosaga) [Digital]
[Mental Specialist (Watanabe Yoshimasa)] Shikoshiko DL (Martian Successor Nadesico)
[Mental Specialist (Watanabe Yoshimasa)] Angel Mort e Youkoso! (Higurashi no Naku Koro ni)
[Mental Specialist] Welcome to Angel Mort! (Higurashi No Naku Koro Ni) Clothes Version
[Mental Specialist] Welcome to Angel Mort! (Higurashi No Naku Koro Ni) Nude Version
(C36) [Studio Z-Agnam (Various)] Leotard Connection
[Watanabe Yoshimasa] Sweet Rain
[Studio Z-Agnam (Various)] BOLOOMAGAZINE VOL.3.5
[Mental Specialist (Watanabe Yoshimasa)] Anice ni Iretai (Sonic Soldier Borgman)
[Watanabe Yoshimasa] Mahou Bishoujo Maruhi Shirei
[Mental Specialist (Watanabe Yoshimasa)] Syuku Shinsaku Dirty Pair Hatsubaikinen Genteibon (Dirty Pair)
Comic Penguin Club 1996-05
(C63) [Mental Specialist (Watanabe Yoshimasa)] Nade Nade Shiko Shiko 13 (Martian Successor Nadesico)
[Mental Specialist (Watanabe Yoshimasa)] Hamehame DL (Tsuki wa Higashi ni Hi wa Nishi ni) [Digital]
(C62) [Mental Specialist (Watanabe Yoshimasa)] Nade Nade Shiko Shiko 12 (Martian Successor Nadesico)
[Watanabe Yoshimasa] Kyokou Sedai
COMIC Penguin Club 1991-11
[Watanabe Yoshimasa] Dokkin Bishoujo Doumei
[Watanabe Yoshimasa] Byouin Kamen
[Watanabe Yoshimasa] Chitsujo Dakkan Geogaia
[Watanabe Yoshimasa] Ikenai Bishoujo H Sakusen
[Watanabe Yoshimasa] Chou Hatsuden Robo Eregander
[Watanabe Yoshimasa] AV Angel I
[Watanabe Yoshimasa] Mahou Bishoujo Maruhishirei
[Watanabe Yoshimasa] Akuma Shiiku Kan
[Mental Specialist (Watanabe Yoshimasa)] DANGAIOH Miatonjau!! (Dangaioh)
[Watanabe Yoshimasa] Ano Ko Ni Wink
[Watanabe Yoshimasa] Kurenai No Shinigami
COMIC Yumichan No.2 1995-08
[Watanabe Yoshimasa] SF Bishoujo H Virus
[Watanabe Yoshimasa] Mad Scientist Ritsuko
(C59) [Mental Specialist (Watanabe Yoshimasa)] Nade Nade Shiko Shiko 9 (Nadesico)
[Watanabe Yoshimasa] D-Blood 1
[Watanabe Yoshimasa] D-Blood 2
[Watanabe Yoshimasa] Kinmirai Ecchi na Hokentaiiku
[Watanabe Yoshimasa] Tookute Chikakute
[Watanabe Yoshimasa] Subete wo Misetai
MAD Sctentist I Became A Woman
[Mental Specialist (Watanabe Yoshimasa)] D.Cup te Yuu ka Mushiro Suikappu 5 (Da Capo)
(ComiComi3) [Mental Specialist (Watanabe Yoshimasa)] Blue White (Xenosaga)
[Mental Specialist (Watanabe Yoshimasa)] Komi Komi Pako Pako 2 (Comic Party)
[Watanabe Yoshimasa] EXORCIST GIRL
[Mental Specialist (Watanabe Yoshimasa)] Bakunyu Tenshi DL (Burst Angel)
[Mental Specialist (Watanabe Yoshimasa)] Nade Nade Shiko Shiko | Yurika vs Megumi: Confrontation Inside The Ship (Martian Successor Nadesico) [English] [EHCOVE]
[Mental Specialist (Watanabe Yoshimasa)] Shiboritate (Hand Maid May) [Digital]
[Watanabe Yoshimasa] Memorial Search
[Mental Specialist (Watanabe Yoshimasa)] Nijigen Tennyo DL [Digital]
COMIC Penguin Club 1996-01
[Watanabe Yoshimasa] Ojousan Ki wo Tsukete
[Mental Specialist (Watanabe Yoshimasa)] Nade Nade Shiko Shiko 8 (Nadesico)
[TSUJIDOU MOTOMACHI] OPPAI BATAKEDE TSUKAMAETE
(CR25) [Mental Specialist (Watanabe Yoshimasa)] Nade Nade Shiko Shiko 6 (Martian Successor Nadesico)
[Watanabe Yoshimasa, Yokoyama Chicha] H-BOMB (Dirty Pair) [English]
(C56) [Mental Specialist (Watanabe Yoshimasa)] Nade Nade Shiko Shiko 7 (Martian Successor Nadesico)
[Mental Specialist (Watanabe Yoshimasa)] D.Cup te Yuu ka Mushiro Suikappu 3 (D.C. ~da capo~)
[Mental Specialist (Watanabe Yoshimasa)] D.Cup te Yuu ka Mushiro Suikappu 2 (D.C. ~da capo~)
[Mental Specialist (Watanabe Yoshimasa)] D.Cup te Yuu ka Mushiro Suikappu 4 (D.C. ~da capo~)
Comic Penguin Club 1991-12