Nano claims to possess many feline characteristics, including a hatred of water and the ability to communicate simply by meowing.
The young woman shows off her cat characteristics by wearing fake ears and an artificial tail. She communicates by meowing.
"I realised I was a cat when I was 16 when doctors and psychologists found out what was the thing with me. Under my birth there was a genetic defect," she explains in the video.
As they walked through Oslo's central station, the presenter asked Nano what she could hear and see that a normal person might not.
"Suitcases rolling on the ground," she says, "keys clinking in pockets. People with ice under their shoes."
Then all of a sudden, she lets out a hiss and takes a step back.
"There is a dog over there," she explains. "Sometime I hiss when meeting dogs in the street. It's because of their behaviour and my instinct automatically reacts by hissing."
The cat woman wears a pair of pink fluffy paws with which to groom herself, and feels especially like doing so when she is in contact with water.
When asked if she was born as the wrong species, she said: "Yes, born in the wrong species."
She added: "It's also obvious that I'm a cat when I start purring and meowing, and walking around on four legs and stuff like that."
She has a friend called Sven, who has a cat personality. They meow at each other in the park.
The young woman said her life as a cat was "exhausting" but that she doesn't want to live as a human.
"My psychologist told me I can grow out of it, but I doubt it," she said. "I think I will be cat all my life."