I did it before asking, but only found out that she's Nitroplus Company's mascotte... I re-googled it now adding "Vocaloid" in the search bar after her name and got some other infos, including that she's a sort of a tribute to Voca themselves. Thanks for the tip!
I see you joined Yonor in cosplaying this character ^-^
If I may voice an opinion, I find that shots with a lot of cleavage generally look best when there's something dramatic about them, to keep the boobs from becoming the focus of the entire shot. Consider Miss Izumi's excellent BRS shot from about a month ago: [link] Excellent expressions and a dramatic scene really give the shot a strong theme, which allowed your sexy curves to add to the overall texture of the shot, without becoming the predominant element.
Don't get me wrong, of course, you look adorable in this shot. ^-^