Mo Qingxian (墨清弦) is a part of the Vocaloid China project. She's described as a fashionable high school student who is somewhat mysterious, but this is due to her poor health and having a slow reaction time towards things. She is viewed as being a traditional girl.
She is formerly known as Chou (蝶音) an original Vocaloid character illustrated by HANS. Her design was a top rank choice during the "Vocaloid China Project".