Android 21 is a kind and compassionate android. She was originally a human woman but chose to become an android to study and research multiple things (mostly in the sciences) for a longer time than the average human lifespan. She studies biology and android research. She's a moderately tall, around 5'8", curvaceous scientist with glasses and long bushy auburn hair. She's very affectionate and wants the best for people. Also, she's a little submissive.