[Furaipan Daimaou (Chouchin Ankou)] Ecoko no Ehon (Ecoko)
(C68) [Uropyon (Urotan)] Eco Splash 6 (Ecoko)
(Ecoket) [Kenrou Koubo (Orimoto Mimana)] Eco Millennium (Ecoko)
(CR29) [Kimpotsu (Araki Akira, KANA)] Cruller (AIR, Sister Princess, Ecoko)
(C57) [Uropyon (Urotan)] ECO SPLASH 01 (Ecoko)
(C60) [Uropyon (Urotan)] ECO SPLASH 03 (Ecoko)
(C58) [Uropyon (Urotan)] Eco Splash 2 (Ecoko)
(C62) [Uropyon (Urotan)] ECO SPLASH 04 (Ecoko)
(COMITIA60) [Sagamani (Sagami Inumaru)] Frozen Punch! (Ecoko)
(Ecoket 01) [Oden-ya (various)] Ecoco na Hon (Ecoko)
