(W) Takahiro (A) Yohei Takemura Otherworldly spaces known as 'demon cities' appeared in various parts of Japan, and those who partook in the 'peaches' growing there gained unique abilities-but only if they're girls. One day, a down-in-the-dumps high school boy named Yuuki Wagura suddenly gets lost at the entrance of a demon city. There, he meets Kyoka Uzen, the beautiful leader of the seven programs of 'Magical Defense Corps,' whoo orders him to become her slave?!

(W) Takahiro (A) Yohei Takemura Yuuki's barely had time to get used to his new role as slave-cum-caretaker when the 7th squad sorties to eliminate a nest of contemptibles. Awaiting them there is Unihorn, the monster responsible for destroying Kyouka's hometown, as well as a girl with a familiar face?!

(W) Takahiro (A) Yohei Takemura Tenka, the boss of the sixth squad, gathers her courage and asks Yuuki out, but unfortunately, he's too perplexed to reply! Meanwhile, the seventh squad needs the assistance of Yuuki's abilities in their fight against a demon that's only getting stronger by the minute! And to make matters worse, a new enemy's about to enter the fray?

(W) Takahiro (A) Yohei Takemura The 6th and 7th Squads team up to rescue the abducted Yuuki, kidnapped by a humanoid Shuuki?who turns out to be his long-lost sister Aoba. Upon learning about their situation, Yuuki tries to convince his sister to let go of her hostility toward the Demon Defense Force, but their conflicting ideals lead to a fierce battle between the two siblings!