Chained Soldier manga volume 1 features story by Takahiro and art by 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,” who orders him to become her slave?!

Chained Soldier manga volume 2 features story by Takahiro and art by 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…!

Chained Soldier manga volume 3 features story by Takahiro and art by Yohei Takemura.

As Himari is cornered by her elder sister Yachiho’s special technique, will her training with Yuuki pay off!? And next up is a high-power match between Shushu and Sahara, but in the heat of battle a new enemy catches both squads by surprise!

Chained Soldier manga volume 4 features story by Takahiro and art by 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…