v4x
The official title of the VOCALOID4 voicebanks and designs for the Character Vocal Series:
- Danbooru post #2534170 (Hatsune Miku)
- Danbooru post #2534193 (Kagamine Rin/Len)
- Danbooru post #2003104 (Megurine Luka)
The designs are illustrated by iXima.