Mamono Hunter Youko: Dai 7 no Keishou

Mamono Hunter Youko: Dai 7 no Keishou (魔物ハンター妖子 第7の警鐘) is an platformer video game developed by Klon and published by NCS Masaya on March 22, 1991 for the Sega Mega Drive in Japan only. It is the first game based on the manga and anime series Devil Hunter Yohko.