Akita Neru (亞北ネル) is an officially recognized derivative. The term "Derivative" is used here to describe a fanmade VOCALOID character that is based on an already existing character.
Smith Hioka, an illustrator, finalized the concept art of Neru and she came to represent the tsundere culture of VOCALOID.
Neru officially has no defined voice, however this has not prevented users from attempting to give her one. In some cases Neru has the voice of a boyish-sounding girl, while some people have assigned her to Miku's default voice, but in a higher octave. Although people use the higher pitched voices as a representation of Neru, her voice has been portrayed in -Project DIVA- 2nd as being a lowered version of Miku. Another suggestion also uses Rin. This was first used in Nanameue-P's HONEY PV, Neru has a singing voice that better matches her aesthetics.
Neru's design is similar to that of Hatsune Miku. She has yellow hair consisting of an odd length of short and long, the long hair is styled into a left side-ponytail held by a blue futuristic ribbon. This does not need to physically touch Neru's hair to keep it in place. She has a stray hair at the top of her head and nose length bangs, her eyebrows are thick and her eyes are tsurime (upward-pointing) eyelids/eyelashes. On her left upper arm is the red mark "DEN2", its significance is currently unexplained and said to stand for the "anti-Miku advertising agency", rumored to be a supposedly-powerful entity in the music industry of Japan. Due to this, details were intentionally withheld for the safety of Neru's creator.
Her top is grey in color and sleeveless with a yellow hem, below her yellow necktie is a triangular cut that shows her navel and the back has two circular holes. The rest of her attire is black with yellow trim. She wears detached sleeves, a pleated skirt with bike shorts and thigh boots. On her left thigh is a garter purse that holds a yellow clamshell cellphone which is presumed to be a Motorola V3X.
