By A.D. 2010, all men have died off quickly due to a dramatic change in the environment and an unknown contaminant. The population decreased to the lowest number ever seen...until only the women were left alive. They live huddled in small corners of a world mostly reclaimed by nature. There are those who accept their inevitable extinction and live a carefree life... There are those who try to continue on the race with the help of science... It is a society of constant conflict over their differences of principles and policies. The story takes place in the center of Tokyo. It is one of the places left for them. The conflict over the specimen of "ICE" and the chance it may provide to save humanity begins.

OVA based on the Joker manga by artist Katsumi Michihara (道原かつみ) and writer Yuu Maki (麻城ゆう). Joker is a genetically engineered shape-and-gender-shifter, who created as part of a Special Police Task Force and fights crime of all kinds, but he/she also fits in a little romance around the edges.

Spirits begin terrorizing a school and it is left up to the sexy student Kocho Enoki to use her attractive body and magical powers to defeat the attackers. Teamed with her sister and Kosaku, their human decoy, they attempt to free the school from the spirits. Unfortunately a female spirit arrives who is immune to Kocho's sexy charms.

Yama Rikudo is not your average teenage girl. With her trademark duo horn-like tufted hair, she’s really a kind of demon policewoman, charged with the duty of protecting Japan from demonic monsters that’ve gone AWOL. Even when her demon superiors try and pull her off the job, because demon-human relations are getting too hot for her to handle, she will stay and fight with her giant scythe, because, while disguised as a high school student, she has fallen for fellow student Sho Kurogane. Now she must save Sho, and his friends, from the evil plotting of the school’s eternal youth seeking, soul sucking, Headmistress.