1. Name - Ajānā
Nickname (opt.) - Aj, Ana
Age - Unknown
Gender - Female
Human or Monster- Human
Soul (if Human) - Deceit (Gray)
Crush (if any) - None
Extra info (backstory, bio, appearance, etc) -

She was abused on the surface to the point where she even got her eye ripped out, so she retreated to Mt. Ebott and fell underground. She has trust issues and trusts no one, so she ran away from Toriel and the Ruins. She wears the mask so the monsters don't recognize her as human (and also to hide her eye and scars). Her sleeves are too long too, so she hides her hands and arms
(Edit: I keep forgetting to mention she speaks in sign language and WingDings to hide the fact she's wearing a mask :P)

2. Name - Mizu
Nickname - Mysterious Girl
Age - Unknown
Gender - Female
Human or Monster - Monster, but can disguise as a human
Crush - None
Extra info -

She often sits underneath one of the waterfalls in the Waterfall area in her human form. When someone gets too close is when she goes into her other form. Usually she's passive and doesn't harm you, but if she senses evil in you she will try to drown you.

3. Name - Lisha
Nickname - None
Age - 1500 demon years, 15 human years
Human or Monster - ...demon. (But with a human form)
Crush - None
Looks/extra info: (i need to update the pic but) In her demon form, she has pale reddish skin and red eyes with a scar over her left eye. Her hair is dirty rasperry blonde and falls over her right eye. She wears a black jacket over a gray shirt with a picture of a flame on it, blue jeans, and black shoes. She has black and red wings, red horns, and a red tail. In human form, she has the same outfit and hair, but her eyes are deep brown instead of red, her skin color is normal, and she doesn't have her wings, tail, or horns.
She's a demon who was banished from hell for being "different," but she was tortured by humans so she fled to Mt. Ebott and fell down. She found shelter and care from Toriel, so she decided to stay, though she sometimes ventures out of the ruins into the other areas of the underground for fun.