Nemu is a young woman with a slender, well-endowed figure and green eyes. Her black hair is tied back in a long braid with slightly parted bangs. She wears a short black kimono that reaches mid-thigh and a white nagajuban underneath. The sleeves of her kimono are not as wide as those worn by most Shinigami, and the upper parts of the sleeves are puffed. She wears a traditional wide white obi , fastened with a red obijime. On her left sleeve, she has her lieutenant's armband.
She wears white gloves that cover the back of her hands and wrists, and a dark red choker. For footwear, she wears white tabi as and black low-heeled sandals with many straps.
In her childhood, she had untidy hair and used to wear a white kimono. Her expression is almost always melancholic, and it is rare to see her smile or show any real joy in her distinctive green eyes. Despite Mayuri's seeming lack of care for her existence, she is very loyal to him, willing to badly injure herself just to give him an advantage in battle. Being the daughter of Mayuri, they share several similar traits.
One such trait is their food preference. Nemu, just like her father, likes pike fish and dislikes onion. They share an interest in Human experimentation and their main free-time activity, which is reading every single character published in Seireitei Communication.
Nemu is being considered to be the next vice-president of the Shinigami Women's Association , supposedly because she carries out President Yachiru Kusajishi 's orders just as faithfully as those of her father.
