I don't get why people think that it's boring
A PV ia a PV, not a short film/movie (even though it can be one). Must every PV have a story with a blatant narrative? Must a story always have a lot of scenes with over-the-top sets and movements? There's always something called artistic appreciation.
I got a feel of older Ayu here, somewhere from (m)u to Memorial Address, which I think was a period of some of her best PVs, so yep, I love this PV. I loved the ink dripping down on her, I wonder what that stuff is made of 0.o I got the impression that the long-haired Ayu is like the white paper with the ink dripping on it. Like someone said, maybe it's her emotions overflowing and engulfing her till she's in ruins.