A close up of Kouen on the back cover of
Volume 12Kouen's Agares Full Djinn Equip
Anime shadowed appearance
Kouen on a promotional poster
Kouen on a promotional poster
Kouen and Sinbad card 04 SSR+
Kouen and his Household in Websunday Backstage Vol.143
Kouen and
Hakuryuu in Websunday Backstage Vol.144
Kouen, Koumei, Kouha and Alibaba in Websunday Backstage Vol.248
Kouen in Astaroth's Djinn Equip for Volume 28's cover