Stella gained her powers in a science presentation, she came into contact with a liquid like water, and it turned out that the glass of water was not water, but a strange substance which made her 5× faster than a bullet train. She is outgoing and blonde, her eyes are normally light brown, but when she uses her powers her eyes glow a neon yellow color. She stutters because she talks too fast. She can go without sleep for 4 days. She's 21 years old.