[Yokoyama Michiru] Haha ga Hakui wo Nugu toki
[Michiru Yokoyama] Lovers of Oedipus
Michiru Yokoyama - Erenoa-san No Seiseikatsu
[Yokoyama Michiru] 28 Years Old
[Antartic Press (Watanabe Yoshimasa, Yokoyama Chicha)] H-BOMB (Dirty Pair) (English)
[Yokoyama Naoki] Dream (COMIC P Flirt Vol.6 2010-08)
[Yokoyama Naoki] Hatsujou Hatsunee (COMIC P Flirt Vol.4 2010-04)
(C63) [Yokoyama Chicha] Niconico Namisan (One Piece)
(C58) [Cha Cha Cha Brothers (Yokoyama Chicha)] Onna da na Saaberaa (Uchuu Senkan Yamato)
[Chicha Yokoyama] Ginreibon NG (Giant Robo)
[Chicha Yokoyama] Ginreibon 7 (Giant Robo)
[Yokoyama Naoki] Carol -Saint Bell- (COMIC Potpourri Club 2011-01)
[Yokoyama Lynch] Forever Yours... (Haha Nama Ch.1) [English] [Coff666]