They surpassing both Itzy and Twice latest first week sales in just 3 days with no big cbar like their peers or huge popularity in Japan. These two market obviously on the top in kpop album sales. They're not popular either in the west. Their cbar sales even decreased as Haewon fanbase which is the biggest only buying about 20k copies for this album compared to more than 50k for expergo.
I'm really curious where's their bigger fanbase coming from that bulk buying their album. This is huge because they able to surpassing both of their senior with no obvious market in their hand. This is different from bg as they're usually doing extremely well in China, or have some indicators that they have huge fanbase even with low streams. This is not the case with Nmixx.
With other 4th gen groups, their strongest market are really obvious,
Aespa: China, Korea
Ive: China, Korea
Lsf: Japan, China, Korea
Nj: China, Korea, US