User talk:Kamikaze7

Kagamine Rin and Len are NOT twins officially.

Source: Nicopedia 二次創作において鏡音リン・レンは双子という設定で扱われることが多いが、 双子という公式設定はない. In secondary creation works Kagamine Rin/Len are often regarded as twins, but there is no official setting as twins.