I was curious so I googled, I couldn't find even a picture of A BEST with obi (though it was a pretty cursory look, and perhaps it's just a white strip? that's the most obi-looking thing I found...) but I did find one of A BALLADS, looks cool:
I am... with short obi
I am shocked it exists! Like so I guess? (Better break out your magnifying glass
)
Anyone have any idea on Boys & Girls? I guess with the slimcase there is no obi either?