What is OSTER project?

Now "what", but "who"! OSTER project is a famous Vacaloid user of course... see what he/she has done. That's right, he/she, we don't know. In fact we know almost nothing of person behind OSTER project.

Here is "koizuru radio". It somewhat explains who OSTER project is (it was also made by OSTER project) but most importantly, it is just very entertaining to watch. :)
Yes, I know, it is old, but I haven't seen it before. Also, youtube quality is much lower than in nicovideo, but in nicovideo there are no English subtitles. :(

Oster Project feat Miku Hatsune in koisuru Radio 01:

Nico link.

Oster Project feat Miku Hatsune in koisuru Radio 02:

Nico link.

Oster Project feat Miku Hatsune in koisuru Radio 03:

Nico link.

Oster Project feat Miku Hatsune in koisuru Radio 04:

Nico link.