Dorothy, the main character.
She's a perseverant teenager that goes to the mansion with one objective: to know the truth, even if it requires to face multiple, vengeful souls.
She tries to be a strong person, however, her greatest fears can play against her during the nights, making her uncontrollable.

Frederick Aerscam
He's an enigmatic man who used to be the owner of the Aerscam Mansion. No one knows his whereabouts after his disappearance during 2015, a year before Dorothy decides to investigate those strange events.
What could be the conection between Dorothy and him...?

The "souls".
Vengeful spirits that seem to be trapped in the mansion. They call it their "home" and won't let anyone invade it.
During the nights, they will become more and more aggresive towards Dorothy, until the point they'll try to kill her as a "revenge".
What are their motives...? How and why did they die...? Why are they trapped in that place...?