Mariana's dreams are home to many different characters. This page lists every single character in the game, whether they are able to be interacted with or not. Note that while the majority of the names are non-canonical, some are official.
Alter Get Characters
These are NPCs that will give Mariana an Alter when she interacts with them.
These are other NPCs that can be found wandering the dream world. They do not give the player any Alters.
Illumihottie is a triangular flying creature located near the biggest pool in the Bath House. As the name implies, she is based on the Eye of Providence, which is widely associated with the Illuminati in conspiracy theories and popular culture.
Flo is in charge of the spa in the Bath House. Giving her 300 money will allow Mariana to take a bath in the spa, triggering the Spa Day event. She also appears in Yume 2kki's Graffiti City and Fantasy Isle as a shop owner and a prisoner respectively.
Marina is a cute, green-haired girl in the Bath House taking a bath in one of the many pools. Like Flo, she also appears in Yume 2kki, where she can be found living in her house in the Neon Sea. Interacting with her will give Mariana a total of 500 money, but only once per save file.
A humanoid character that is the only creature residing in Green Field.
An angelic jellyfish that wanders the Bath House.
A large eel-like creature swimming in one of the pools of the Bath House.
The Phantom Woman is a mysterious entity that endlessly wanders the Cathedral.
A creature with an amorphous appearance that swims the waters of the third room of the rightmost section of the Cathedral. There is no way of directly interacting with it since it's in the water.
These fish can be found in one of the rooms of the Cathedral inside what seems to be pools lying in the grass.
A human-like creature sitting on the Docks.
Multinote Man is a big creature found on the Docks. They are a series of multiple music note shaped heads sharing a single body.
A girl that lives in a conic house in the Docks.
Two ghostly figures found contemplating some jellyfish in the secret aquarium at the Docks.
Jellyfish seen swimming around in the aquarium at the Docks.
Hellflower is a mysterious girl located in the Red River near the Spiderlily Menu Theme. Interacting with her will show a close-up of her face, smiling at you, and then she will disappear. It is possible to encounter her again in a random location after this.
The Manager is a tall, demon-like creature behind a counter at Victorian Stairs's entrance. He will not be happy if you mess with a jukebox somewhere in this world...
An unknown character that hides behind a door in Victorian Stairs. Whatever this thing is, all we know is that it has three red eyes. Opening the door it's hiding behind will make it close it immediately. The door will be unable to open again unless the area is left.
A mysterious ghostly version of Mariana sitting in a fetal position in the Cathedral.
This amorphous monster inhabits in the waters of the Docks near the Humanoid Moose. There's no way of interacting with it.