Library

A phone call from an unknown source brings everyone together in a mysterious place of endless darkness. The elusive dark mysteries are endless and strange like a treasure bag. Numerous mysterious species appear frequently as the protagonist group is guided. Which mysterious clue is true or false? There are always "stumbling blocks" to progress. The entire mystery is like a living creature that is constantly changing. Maybe it's a huge conspiracy of a certain organization, or maybe it's the mysterious attitude towards the world. And the black hand hidden behind it may not be him. ............