Japan has become a tidy rival and nemesis for Australia in recent years, but they have a job to do at the FIFA World Cup.
At their best, Japan plays a lightning-fast brand of football that could put any team on notice. But the thing is, Japan has not been anywhere near their best for some time.
Qualifying was laboured for Japan and their manager Vahid Halilhodzic sacked after qualification in a bid to breathe new life into their campaign.
But results like a 1-1 draw against Mali recently does not exactly inspire confidence.
Their pool is imminently winnable for all four teams, which generates some excitement for fans of the Blue Samurai. But this is a side with some ageing legs, some untested rookies and is sitting in a generational shift at the worst time.
How Japan fare should be revealed in their first match against Colombia. If they get hammered there, don't expect them to recover.
The draw for Japan
Colombia, June 19
Senegal, June 25
Poland, June 29
The star players
Japan does boast some genuine star power in Shinji Kagawa (Borussia Dortmund) and Keisuke Honda (C.F. Pachuca), but both are starting to nudge their way into veteran territory.
The Blue Samurai will have to invest all of their efforts into these two players and hope their defensive line is strong enough to hold out opposition raids.
What needs to go right
A dramatic turnaround in form is required for Japan to make an impact here. But they struggled in 2014, were sluggish in qualification and have done nothing of note since.
Four nations sacked their manager after qualification, but Japan was the last one to do so. This means they are right behind the eight ball in preparation with a squad that is already struggling.
If new manager Akira Nishino can turn that around in mere months, he will be a hero in Japan.