Another example of Gumi being the best-sounding of all the Vocaloids.
This song was number one this week. Mozaik Role had a resurgence, and it went up to number two. So Gumi held both of the top two places. It appears the world is finally coming around to realize the truth. Gumi > Miku.
Incidentally, third place was held by… Haku? That was a surprise.