Sakura Taisen Vol 1

Sakura Taisen by Satoru Akahori. A Romance manga rated Teen, published in English by Tokyopop.

In an alternate Taisho-era Tokyo powered by steam, the Imperial Floral Assault Troupe, a group of young women who are stage performers by day, pilot armored machines to defend the city from demons. Naval officer Ichiro Ogami is assigned as their captain. Based on the Sakura Wars games.