This soundtrack:
Very Best of Kirby: 52 Hit Tracks, The
Catalogue Number   KIRBY04-2
Publisher   Nintendo
Composition   Jun Ishikawa, Hirokazu Ando, Tadashi Ikegami, Shogo Sakai, Hironobu Inagaki, Atuyoshi Isemura

Did this soundtrack come with an obi? Because all of the ones I've seen on Yahoo Japan don't have one.

It did not. I got mine sealed from Kahori, no obi.

Nope no obi; and mine was a sealed copy as well