User blog:HaiFire3344/Hatsune Miku preliminary page

''You can view this page's source [ here]. Please do not add this page—or any information about Miku being the sister of Boyfriend or Ritz—to the mainspace yet, as Miku is not yet confirmed.''

Hatsune Miku (初音ミク) is a potential upcoming opponent for Friday Night Funkin'. She is Boyfriend's older sister and currently appears as a background character in Week 5.

Origin
Hatsune Miku originates from the VOCALOID and Piapro Studio singing voice synthesizer programs. She is a virtual vocalist who was conceptualized as "an android diva in the near-future world where songs are lost," and she is capable of singing in Japanese, Mandarin Chinese, and English. Originally launched in August 2007 for VOCALOID2 as the first member of Crypton Future Media's Character Vocal Series, Miku has gone on to become one of the most popular VOCALOIDs.

Trivia

 * ninjamuffin99 and PhantomArcade have both confirmed that Miku is canonically Boyfriend's sister in the Friday Night Funkin' universe.
 * This means that she is also Ritz's sister.
 * It was confirmed on stream that in the Friday Night Funkin' world, a few years have passed since Miku was still a teenager, so she is the older sister of Boyfriend.
 * PhantomArcade also confirms in the aforementioned stream that the developers are trying to talk to Crypton Future Media in order to get the rights to Miku.
 * ninjamuffin99 has expressed interest in adding Miku to the game officially as well.