Female / The only ordinary human and the long-suffering protagonist of this story. She moved to Gwangha-si after winning a housing donation, but unfortunately, strange neighbors gathered around her house, leaving her without a single day of peace. After suffering through hardships like her house being half-blown away, she works part-time jobs or as a Gwangha-si civil servant (in charge of receiving and processing complaints) to earn money for repairs.

Male / A children's book author and a fairy of dreams. He has a soft and kind personality, but he has a surprising charm where he often puts people around him to sleep or suddenly snaps when he gets angry. He loves carrots so much that he often offers them to his neighbors. He has a memory of visiting and playing in the dreams of Raddop when Raddop was a human child. He usually goes around in human form.

Male / Sleepground's next-door neighbor and a vampire. He is characterized by a pale face and a dry, annoyed way of speaking. He hates sunlight, so he wears sunscreen during the day and drinks an artificial blood called 'Blood Juicy' instead of real blood. His uncle is the chairman of an artificial blood factory (Blood Factory). He surprisingly gets along well with Sleepground. He usually goes around in human form.

Male / An undead who is the conductor of the train to the afterlife and is called a Grim Reaper. He is an immortal who once died and came back to life. Due to the shock after death, he lost his memories of his time as a human, and he has a comedic element where his head or torso keeps falling off. He looks blunt, but he has memories of Soohyun from his childhood. He usually goes around in human form.

Male / A half-dragon born between a dragon father and a human mother. He is the tallest and has green wings, with a playful and chaotic personality. He has a pollen allergy, so he has the fatal(?) ability to breathe fire when he sneezes. He eats 'Moonlight Flowers (Daloreum Flowers)' to maintain his human appearance. He usually goes around in human form.

Male / A scarecrow wizard. He is closer to a being created by a pure human wizard and possesses powerful abilities that are among the best in the world, such as memory manipulation and terrain manipulation. He harbors a wish to create a path where humans and non-human species can live together in peace. He usually goes around in human form.