It is the year 1764 on the continent of Eoch, a land covered in shadows where monsters roam freely and people struggle to live a life worth living. After a terrible calamity caused by an unknown surge of magic, this world has been torn by various tears in the fabric of reality that allowed various monsters and demons to flood the continent. Now, people huddle in their cities and villages, terrified of even commuting to other settlements in fear of being attacked by a monster, or worse, by another human being who is desperate to survive.

You have been hired by the Adventurers Guild to go to a place called Rabensburg, where mysterious disappearances started to happen. Children of all ages started to disappear from their homes or from the streets, and no one knew their fate. Your investigation was long, but you finally managed to track a faint clue leading you to an old mansion owned by a local noble named Christopher Monter. What will you do, adventurer?