Nakamoto Nobuhisa

The fate of mankind is doomed in the early 21st century due to losing "purana," an essence of living force supporting all life forms. Not willing to witness the extinction of mankind, a vampire named Duo disclosed the secret of purana to humans, saving the latter from destruction. However, just like Prometheus in Greek mythology got punished for bringing fire to mankind, Duo is punished for breaking the taboo. The vampire sent to punish him is Zieg, Duo's best friend, or, more than the best friend.

Ishida & Asakura focuses on the title characters—the stoic Ishida and the lecherous Asakura—and the bizarre students and teachers that populate their high school. Asakura is obsessed with curvaceous women and dreams of becoming a teacher in order to be surrounded by attractive girls all day. Ishida dreams of running a flower shop together with Asakura after they finish high school, and appears to have strong homosexual feelings for his best friend, although this is always played for laughs.

Teenage boy Takeshi and girl Michi get lost in the Card Battle world and have to win card battles to return home.