Kiyomu, a young broom-maker living in the countryside, is suddenly transported to the Taisho era by a strange turn of events. There, four girls called the "Imperial Capital Cleaning Service" fight daily against grotesque monsters to protect the capital. Through their battles, a defilement known as "Gomishyuu" accumulates on their bodies... It is discovered that Kiyomu's body possesses a special power to remove this "Gomishyuu"...!? A Taisho Roman erotic comedy with young maidens!