Aja M./Undertale

Aja Musac is a universe jumper. In Undertale, she's sweet, friendly, charismatic, and stylish. She's been on Mettaton's show once or twice, because of her fantastic singing voice. She is modest and shy, often saying she's bad at singing, which is embarrassing for her species. This universe is where she met her soon-to-be bff.
==Profile==
===Appearance===
She has ginger hair, which is worn in a high ponytail, greenish blue eyes, and fairly toned skin. She can transform into a mermaid at will, and when she does, her tail is black.
She wears a strapless red dress with white polka dots on it, a white elbow length leather jacket, and white flats. She also wears a seashell necklace, which is what allows her to enter her mermaid form. Her top for when she's a mermaid is a strapless red crop top with white spots on it.
===Personality===
She is friendly, modest, open-hearted, and caring. She is a crying shoulder, since she's always there to comfort those in need. Her singing voice is very soothing to aching souls. When she's with Austine, she is playful, energetic, competitive, and a good sport. She's described as the kind of girl everyone would want to be around.
==Abilities==
She is a siren, so she possesses musical abilities, and transformational abilities as well.
*Soul music: Her soul plays music. If her soul is negatively affected, it plays a sound that only the Canine Unit can hear, and it is described as "unbearable".
*Transformation: She can change from human to mermaid at will. She requires her special necklace, otherwise she's trapped in the form she's currently in.
===Weaknesses===
If her seashell necklace goes missing, she cannot turn back to a human or turn into a mermaid, depending on what she currently is.
==Trivia==
*She is one of 5 Genocide-exclusive bosses, the others being Undyne the Undying, Mettaton NEO, Sans, and Esme.