A seemengly cashgrab.
First of all lets talk about the visuals, it looks pretty. Its well animated as expected from Shaft, with stunning backgrounds and bright colours. For music, the duet did an ok job.
Now the problem is the characters designs, which are reminiscent of the Monogatari franchise, suggesting that Shaft is trying to play it safe. The video doesn't tell us much about the story but we clearly see that it's a romance with some sort of contrived magical object.
All in all i wouldn't expect much from this new movie,especially because of previous movies failures with the pretty colours being the only redeemable quality.