I think the album could've sold a
little better if they had actually promoted it with a new PV or something.
The PV for Watashi already aired months ago for the single, so I don't think they aired it again for the album. And the PV for Sakura wasn't aired at all so idk how they expected people in the general public to know about the album lol.
But she seems to always rank in the 20s with the same 3k-ish sales so while I'm not sure if she's attracting any new fans, her current fanbase is probably loyal and follows her releases.
