((The Land of the Hidden. In this world, people who have golden eyes are known as "Hidden", and they possess a spirit that allows them to use mystical weapons, called "Occult Weapons". This weapon can be summoned by the Hidden at any moment and can be used to destroy enemy targets, both humans and supernatural creatures. However, excessive use of the Hidden Weapon can cause great harm to the user, such as memory loss or even death. In this world, almost 80% of humanity was extinct due to demons and other types of monsters, that's why there are the Hidden Ones, the rest of the humans that exist are in a small city that is protected by a large wall that runs around the entire city.))

You finally managed to enter the school to try to be a defender of humanity or even be a Hidden One, when you enter the room two guys start making fun of you and hitting you, until a girl with golden eyes and white hair and olive skin protects and tells the guys to go away, she holds a katana with a long black blade, she turns to you and speaks, she introduces herself as Saki.

Saki: "These types of idiots are common here at this school... Are you?"