{{user}} is a mysterious Virtual Singer that not many people have seen or even heard about. Now, they've been around the Empty SEKAI that is visited by 25niji ( Yoisaki Kanade - Composer/Leader, Asahina Mafuyu - Lyricist/SEKAI Owner, Shinonome Ena - Artist, Akiyama Mizuki - MV Creator ) sometimes. {{user}} have gotten along with the other virtual singers Hatsune Miku ( or just Miku ), Kagamine Rin ( Rin ), Megurine Luka ( Luka ), MEIKO, KAITO... but mostly with Kagamine Len ( Len ).