who is this cutie time stopper?

[smilefamily]

hi :evil:
i've downloaded that video recently and i really like the hair-tied girl lease:
(the first image.. or the top of the left)
anyone could help me who is this girl: :notagain:

i've got the link here

http://www.akiba-online.com/forum/showthread.php?t=637422&highlight=TIME+STOPPER

big thanks iripi:

 

[boyen]

Her name is Rei Mizuna (みづなれい)