Nekomura Iroha is a Hello Kitty-inspired Vocaloid, a singing voice synthesizer software released during October 2010 in the VOCALOID 2 line.
Nekomura Iroha was developed and distributed by AH-Software Co. Ltd., and was created in collaboration with SANRIO and the Hello Kitty to Issho! Project.She was updated to the VOCALOID4 engine in June 2015.
Her voice provider was initially unrevealed, but was eventually confirmed to be utaite and Showa-style singer Kyounosuke Yoshitate on June 18, 2015.
"Iroha" is the old Japanese variant of "ABC" (as seen in the Japanese iroha poem) and "I, Ro, Ha" means "A(La), B(Si), C(Do)" of seven-note scale. "Nekomura", her surname, means "Cat Village".
Iroha is a girl with short coral red hair with a long ponytail. She wears a sleeveless reddish-pinkish dress with Hello Kitty details that is decorated with a few black markings, and a black Hello Kitty cat-eared headband and a pink ribbon. On her waist, she also wears a black ribbon decorated with a Hello Kitty face ornament. On her arms, there are white kitty-shaped "sound cannons" which she uses to enhance the sound of her voice when singing. In her soft form, she wears a colourful kimono with a kitty-shaped furcoat. Most of her accessories remain the same, except the ribbon she wears on hair is now white and styled with pink dots.
She is illustrated by okama, a Japanese manga artist and illustrator.
Iroha is canonically a "Kittyler": someone who loves the Sanrio character Hello Kitty. She joined the Hello Kitty to Issho! Project in early August 2010. According to her official profile on the Hello Kitty to Issho! page, she is interested in Hello Kitty and wants to become a "Platinum Kitty". A story about how she became a Kittyler was included.
Nekomura Iroha at the VOCALOID Wiki