Sengoku Makan

Sengoku era is the time of monsters! Female military commanders from various regions of Japan gather in Azuchi to beat the leader of evil monsters, Nobunaga. However, many traps await them in the castle and most of them become captured. To save other commanders, the protagonist, Kenshin rushes into battles! Does she succeed in saving her fellows before they are totally destroyed by the assaults from monsters?

(Source: DLsite)