Rin x Sen + Ran -> Sem Cross Mix: Haru Urara, Uragiri to Zetsubou no Kisetsu-hen Episode 1

Mai and Ai Amatsu are beautiful and powerful twin sisters descended from a Tennyo angel. However, part of this legacy includes fighting off sex-starved demons and protecting the child-like boy Onimaro from evil forces. Can Mai and Ai carry out their mission

Shio Atsushi is a professor who will provide home class to two daughters of different families : Arisa and Maya. But it seems this won`t be only educationnal purpose since the two girls show interest to that man.

A female mecha knight team is stranded behind enemy lines. They are in for a dangerous and titillating experience.