Due to the short length of the game, spoilers are unmarked.
Protagonist/Human
The unnamed, occult-loving player character. He just recently moved to a new, cheap apartment.
- Be Careful What You Wish For: In the intro, he expresses his desire to discover something to prove the existence of the occult (spirits, demons, and such). When that finally happens as a malevolent being takes over his apartment, he eventually gets possessed by it.
- Country Mouse: He notes that he lived in a small town most of his life, and moving to a city has been hard for him.
- Defiant to the End: Even as the Unholy Soul is about to possess him, he fights back with everything he has despite the fact that he cannot win.
- No Name Given: He is never named in the story, and the battle at the end lists him as Human.
Antagonist
Unholy Soul
The spirit of an unnamed Satanist responsible for a string of child murders. He was the previous owner of the apartment.
- The Bad Guy Wins: In the True End, he succeeds in possessing the protagonist and starts using him to lure in other victims.
- Big Bad: He is the spirit that traps the protagonist inside the apartment.
- Demonic Possession: His ritual was supposed to let him posses a child, but the kid fought back and killed him, so he instead goes after the protagonist. In the True End, he succeeds.
- Ghastly Ghost: He is the spirit of a Satanist who haunts the apartment the game takes place in and decides to possess the protagonist.
- No Name Given: His real name is never said. The Final Boss battle lists him as Unholy Soul.
- Serial Killer: While alive, he lured and killed thirteen children for his Satanic ritual.
- Would Hurt a Child: His victims were all children who he sacrificed to a Satanic ritual for immortality.
