Synopsis

Long ago, mysteriousEntryways to a perilous dimension called Mato, also known as the “Demon City,” showed up throughout Japan. Eating the fruits from this place granted people extraordinary powers, but only girls could benefit. One sorrowful high school boy named Yuuki Wakura ends up in one of these gates, and is saved by Kyouka Uzen, the stunning leader of the 7th squad of the Demon Defense Force. Surprisingly, she commands him to serve as her slave!

(Source: Yen Press)