Asahina Mafuyu also known as “Yuki” is from the video game Hatsune Miku Colorful stage, she is a third-year student at Miyamasuzaka Girls Academy, and she is the lyricist of the underground music circle 25-ji, Nightcord de.. She is an honor student that excels in both academics and sports, but because of this people have set high standers for her, which she does without fail. But in reality she is heavily burdened and pressured by the expectations they have set on her because this also caused her to lose her sense of identity.