Null

Null is a main character in the Null & Peta series. She is a genius in elementary school who built Peta (Robo) after her sister Peta died.

Personality
Throughout the series, viewers can see that Null is quite rebellious, even for her age. She believes that due to her intelligence, she can distinguish between what’s right or wrong for her. She sets out to prove her point quite often. Besides that, she's quite cheerful and prides herself on her genius inventions.

Appearance
Null is a short, elementary school-aged girl with blond hair and orange eyes. She wears a brown dress covered with a white lab coat and wears a large red ribbon. She has white thigh-high leggings and wears brown knee-length boots.

Backstory (spoilers)
Her sister Peta did not get hit by the car. It is later revealed that Null was chasing after Peta Because she left some items at home. Null stopped and got hit by the car.

Eventually, Null wakes from being unconscious and finds out her sister, Peta, created a virtual world so she could communicate with Null. That's why Null didn't die for most of the episodes.

The origins of her parents and what happened to them are unknown at the moment.