The covers added in general this new years' seem to have had an extra layer of love added on top, but it might just be my imagination. The Kimagure Mercy cover was also done super super well and the 3DMV had direct references to both the original video and the popular MMD choreography.
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pico
mobius017
The song does sound nice! 
Hm, so this version should be using Miku NT, right?
Miku's timbre here sounds a good bit different to me from the original song (released in 2010; would've used V2, which happens to be what NT was modeled after, I believe)--more nasal, I guess, is the clearest way to describe the difference. Is that typical to Proseka songs? Either way, it works well here, with the other two vocalists.
Hm, so this version should be using Miku NT, right?
Miku's timbre here sounds a good bit different to me from the original song (released in 2010; would've used V2, which happens to be what NT was modeled after, I believe)--more nasal, I guess, is the clearest way to describe the difference. Is that typical to Proseka songs? Either way, it works well here, with the other two vocalists.