Everyone who comes to Japan inevitably falls in love with the conbini.

The Japanese convenience store experience has it all: perfectly packaged onigiri, piping hot fried chicken, seasonal snacks, ubiquitous alcohol. You can pay your bills, send a parcel or buy fresh underwear.

But recently, a new competitor to the conbini has emerged on the streets of Tokyo — one that doesn’t stay open 24 hours or let you send your snowboard to the ski fields. And yet it’s threatening to eat 7-Eleven’s lunch.