Aruto

Aruto is a downloadable character for the Ukagaka software who was released in 2003. She was developed by kitsupon. She's described very simply as an angel girl. She is often depicted as caring and shy. She's seen often with a small white creature named "Shiro Unyuu" (白うにゅう) who is an offshoot of "Unyuu". Unyuu is a small blue companion seen with the original Ukagaka, Sakura. It's common for different Ukagaka to have their own small companions or versions of Unyuu.