"Hatsune Miku", "Kagamine Rin", "Kagamine Len", "Megurine Luka", "KAITO", and "MEIKO" are characters for virtual singer software developed by Crypton Future Media, INC.
Through these characters and the software they represent, countless individual creators have published works inspired by each other in a chain of creativity. In reference to this peer production, the characters are collectively known as the "Piapro Characters".

Hatsune Miku is music software developed by Crypton Future Media, INC. which enables anyone to generate a singing voice by entering lyrics and melodies. As a massive number of users created music using the software and posted their works on the Internet, Hatsune Miku quickly evolved into a cultural phenomenon. In the years since the software’s release, Hatsune Miku has gained much attention as a character, becoming involved in many fields such as merchandising and live performances as a virtual singer. Now her popularity has spread across the globe.
Age: 16
Height: 158cm
Weight: 42kg
Color: Blue-Green
Voice Artist: Saki Fujita
Initial Release Date: August 31, 2007
Art by KEI


SNOW MIKU is a character who serves in supporting Hokkaido.
Originally inspired by the Hatsune Miku Snow Sculpture of the 2010 Sapporo Snow Festival, she has gone on to play the leading role at the SNOW MIKU Festival held every year in Hokkaido.
Art by KEI

Sakura Miku is Hatsune Miku with a design inspired by the season of spring, featuring cherry blossoms and cherries.
The official main visual for Sakura Miku was drawn by KEI in 2019, and since then Sakura Miku has expanded her activities.
Art by KEI

Kagamine Rin is a 14 year old girl characterized by her blonde bob topped with a large ribbon. This virtual singer was first included in software released on December 27, 2007.
The voice of Kagamine Len is also included in the same software package.
Age: 14
Height: 152cm
Weight: 43kg
Color: Orange
Voice Artist: Asami Shimoda
Initial Release Date: December 27, 2007
Art by KEI


Kagamine Len is a 14 year old boy characterized by his short, tied-back blond hair. This virtual singer was first included in software released on December 27, 2007.
The voice of Kagamine Rin is also included in the same software package.
Age: 14
Height: 156cm
Weight: 47kg
Color: Yellow
Voice Artist: Asami Shimoda
Initial Release Date: December 27, 2007
Art by KEI


Megurine Luka is a 20 year old female virtual singer characterized by her long, pink hair. She made her debut in dual-language software released on January 30, 2009 which supports both Japanese and English vocals.
Age: 20
Height: 162cm
Weight: 45kg
Color: Pink
Voice Artist: Yu Asakawa
Initial Release Date: January 30, 2009
Art by KEI


MEIKO is a female virtual singer characterized by her red crop-top and chestnut-brown hair. She made her debut in software released on November 5, 2004.
This was the world’s first Virtual Singer Software to feature Japanese language support. It was also the first time that a character had been utilized on the packaging of such software, making her a pioneering figure.
Color: Red
Voice Artist: Meiko Haigo
Initial Release Date: November 5, 2004
Art by iXima


KAITO is a male virtual singer characterized by his slightly flared dark-blue hair and long blue scarf. He made his debut in software released on February 17, 2006.
This was the world’s first male Virtual Singer Software to feature Japanese language support.
Color: Blue
Voice Artist: Naoto Fuga
Initial Release Date: February 17, 2006
Art by iXima
