The Only One didn't get a box, but it looks like those Japanese SHM cds did:
"The 7 SHM-CD´s are out in Japan today (May, 21st). Seems that you can purchase the whole package stocked in a beautiful Pornography Design Box through DISK UNION only. All other shops sell it seperately only - as far as I´ve seen.
Here is the link of disk union - even though you can't see the box. But I´ve checked it in the shop and it looks very nice. http://diskunion.net/portal/ct/detail/04IA14"