This hasn't been confirmed as the next single right? It's just an album track, isn't it?
In that context, this PV isn't really supposed to be as good as regular PVs. I see this as coming from the same place as v-u-den's "Ai Suite Room" PV, though I don't think this is as good.
The costumes are too loose and look baggy, nakky's hairstyle looks a little off, and the song sounds like it's trying unsuccessfully to modulate to a different key at the end of each chorus.
To misuse a common meme:
Album song PV is album song.