Kouki

The are the occurring demons in the Sakura Revolution mobile game.

Overview
They are the demonic entities that have appeared since the Great Tokyo Disaster with only the Great Imperial Combat Revue B.L.A.C.K. as the national defence by Prime Minister Tokisane Kira's decree. It wasn't until Shino Sakura's debut fight that the Kouki are ordinary humans transfused with demonic essence and extracted of spiritual energy due to the Mirai, and only the maidens' spiricle strength (aka Spiricle Dresses) with the regalia can revert them back.