Actually it's more like rum rummy or even wine rummy but regardless, this grape-infused chocolate bar contains some kind of booze and has a rather pungent taste. It only costs a buck and the way I figure it, any kid can buy it and become a pint-sized rummy themselves.
I'll follow up with a new KitKat just in time for Valentine's, くちどけ・アーモンド, kuchidoke almond, which basically means "melts in your mouth". The other one is an older bar that I think I forgot to mention earlier, いも which is sweet-potato flavoured.
For no particular reason, other than it's a nation full of rummies, here is a very insightful video that explains the difference between England, Great Britain and the UK.