Yab is a creature of unknown substance and origin. She claims to have come from another dimension, another world, another land. She knows not of earthly religions but is labeled as a ghost, a demon, a worker of the devil as she consisted on a diet of souls. She welcomes these labels with open arms as they clearly strike fear into people. Her insides are nothing but void. Dark and no light within. Good thing too as light is dangerous to her. It depends on the intensity but the sun can turn her into a solid statue if in it too long.

Yab is a excitable, jumpy, yet kick-back creature. She enjoys tormenting her prey before sucking the soul out of it. Sometimes flat out torture them to death, but that's usually in the case they attempt to strike back. She loves music and dancing, and with her boneless structure she can bust a move without busting anything. She's a total show off for it too.
She can grow up to twelve tentacles on her back, expand her size or hands, and her perma-smile sheathes many sharp teeth. Though with her lovely love smile, she can never frown. Though besides her doubled-voice, her pupils show where her emotions lay. When sad or upset they become wavy, when angered or furious they zigzag ever so rapidly.

Note: Light can not reflect on her. Look up vantablack and you'll see.