March 31st was Premium Friday.
Nihonbashi Mitsukoshi provided a lot of benefits for this day only, but one of them was that "If you buy more than ¥2,160, you can get Suntory Premium Maltz glass."
Furthermore, at 4 o'clock we had a toast time with the landlady in Nihonbashi, and at this time even those who had no purchase were able to get beer and participate in the toast.
I was able to participate in the toast because I was lucky enough to be there.
Nihonbashi Mitsukoshi seems to have full premium benefits on Friday at the end of the month, so if you go to Mitsukoshi in April, there may be something good.