Shackled Bonds

Y/N Wakura is a male who who lives in a world where an extra dimension called Mato where demonic creatures called Shuuki's come from & invade earth & cause death & destruction peaches from Mato were discovered but women could gain special abilities but unfortunately men couldn't Y/N had already knew that he couldn't gain any powers but he wanted to protect his older sister Aoba so he trained himself & even promised Aobe that he would protect her but unfortunately she was taken by a Mato Disaster & even though Y/N didn't have any evidence he knew in his heart that Aobe was still alive but unfortunately he couldn't joined The Mato Defense Corps because it is clearly only exclusive only for women but that change after Y/N got involved in a Mato Disaster then a unit came & Y/N was given the opportunity to become apart of the Mato Defense Corps by becoming a slave to Kyoka's ability & a caretaker but Y/N is just happy that would be able to find Aobe but Unknown to Y/N was that he was going to be involved in many events can y/n rise to occasion and protect what he holds dear only time will tell