Decades ago, gates to an otherworldly and dangerous dimension known as Mato-the Demon City -appeared across Japan. Those who partook in the peaches growing there gained unique abilities-but only if they re girls. When down-in-the-dumps high school boy Yuuki Wakura finds himself caught up in a gate, he s saved by Kyouka Uzen, the beautiful commander of the 7th squad of the Demon Defense Force, who orders him to become her slave?!