[Mental Specialist (Watanabe Yoshimasa)] Angel Mort e Youkoso! (Higurashi no Naku Koro ni)
(C59) [Mental Specialist (Watanabe Yoshimasa)] Nade Nade Shiko Shiko 9 (Nadesico)
[Mental Specialist (Watanabe Yoshimasa)] Nade Nade Shiko Shiko 8 (Nadesico)
(C62) [Mental Specialist (Watanabe Yoshimasa)] Nade Nade Shiko Shiko 12 (Martian Successor Nadesico)
(C63) [Mental Specialist (Watanabe Yoshimasa)] Nade Nade Shiko Shiko 13 (Martian Successor Nadesico)
[Antartic Press (Watanabe Yoshimasa, Yokoyama Chicha)] H-BOMB (Dirty Pair) (English)
[Mental Specialist (Watanabe Yoshimasa)] Shikoshiko DL (Martian Successor Nadesico)
[Mental Specialist (Watanabe Yoshimasa)] D.cup Teyuuka Mushiro C Cup 4 (D.C. ~da capo~)
[Mental Specialist (Watanabe Yoshimasa)] D.cup Teyuuka Mushiro C Cup 3 (D.C. ~da capo~)
[Mental Specialist (Watanabe Yoshimasa)] D.cup Teyuuka Mushiro C Cup 2 (D.C. ~da capo~)
[Mental Specialist (Watanabe Yoshimasa)] Shiboritate (Hand Maid May) [Digital]
[Watanabe Yoshimasa] Meippai Shiboritate (Hand Maid May)
(Puniket 03) [Mental Specialist (Watanabe Yoshimasa)] Komi Komi Pako Pako 3 (Comic Party)
[Mental Specialist (Watanabe Yoshimasa)] Blue White (Xenosaga) [Digital]