[*Petit*]

I don't think it would flop as a physical release. One of the reasons why it's being released as a digital single is probably because she doesn't have time to promote it properly as a single. Ayu has a history of remarcably stable sales, even if they've been declining. Also her last few singles sold almost exactly the same even if promotion wasn't. Ayu has enough hardcore fans to get another number one even with little exposure, given the single's released on the right date. A number one isn't really a flop in my book, even if it ends up selling less than L did.