Chained Soldier

After graduating from high school, Yuuki Wakura reflects on the five years since his sister vanished during a "Mato disaster." Mysterious portals have emerged across Japan, leading to a dimension called "Mato," a demonic city inhabited by dangerous creatures known as "Shuuki," posing a threat to humanity. A glimmer of hope emerged with the discovery of Mato fruit, which grants supernatural abilities to women, empowering them to combat the Shuuki. This led to the establishment of a matriarchal government and the formation of the Anti-Demon Corps, relegating men to a lower status in society. When Yuuki unexpectedly finds himself in Mato, he struggles to escape alone. Just as he faces a grim fate at the hands of the Shuuki, a girl in military attire intervenes to save him. Kyouka Uzen, the ambitious leader of the Seventh Unit of the Anti-Demon Corps, faces criticism from her peers for her unusual powers. In this life-or-death scenario, Kyouka seizes the chance to explore the true extent of her abilities by making Yuuki her slave, essential for defeating the Shuuki.