CITRIN

History
"CITRIN" is a doujinshi circle consisting of two members "NEGI" and "Hiro Tamura". The circle was first introduced on 2008 as "CITRIN" their first collaboration together, "Jebanni-P no Inori Boshi". CITRIN introduced themselves as a circle on certain events who also produces PVs "who loves Kagamine Rin".

Often CITRIN would publish doujinshis in events such as Comiket or Vocaloid only events such as VOC@M@S. In a matter of PV producing, in collaborations NEGI would often do the video with Hiro Tamura doing the illustrations.

Some of their notable collaborations include Samfree's "Yamiiro Alice", "Fate of Soul" or Signal-P's "UNBALANCE". Quite recently Hiro Tamura and NEGI have published many Project Diva modules doujinshis, to be more precise of their modules Black Star and Blue Moon (NEGI) or Suou and Aitetsu (Hiro Tamura).