The story is set in a near-future Japan where portals lead to , a dangerous dimension filled with monsters called Matriarchal Society : "Peaches" from Mato grant superpowers, but only to women. The Contract
The ambitious Chief of the 7th Unit. Her ability, "Slave," allows her to harness the latent potential of another being, turning them into a powerful combat mount. The Reward System Chained Soldier Manga