Tsuki Kagura

There is a city where a war between a shrine and monsters lasts for a long time. One day, Chimushi-hime, a leader of the monster group, says to Hitenmaru, her right-hand man, "Be careful, there is something wrong with the sky..." Just when he goes out to the front line, there appears Honoka and Sumika from the shrine group. While they have a battle, some strange monsters suddenly appear in front of them. The shrine group and monster group work together and somehow defeat them... After the battle, they decide to call a truce, and try to get rid of the strange monsters...

[From V-N.net]