Japan repeated their Rugby World Cup heroics of four years ago by pulling off a stunning 19-12 victory over Ireland to shock the globe once again.
The tournament hosts produced yet another miracle to match their 34-32 win over South Africa from 2015.
The Brave Blossoms tore through Ireland time and time again in Shizuoka, triumphing through superior tenacity and supreme intensity.
The world’s 10th-ranked team beat the second-best outfit, who entered this tournament ranked number one in the standings.
Wing Kenki Fukuoka ran in the try that sealed Japan’s famous victory and the 2019 World Cup has well and truly sparked into life.
Fukuoka was not even meant to be in the match squad, but stepped onto the bench when William Tupou picked up a late injury and Lomano Lemeki started.
The 27-year-old stormed in at the corner to send the Shizuoka Stadium Ecopa into delirium though, and rip up the pre-written expectations for Pool A.
Ireland failed to cope with Japan’s intensity and precision, and this defeat leaves their group wide open.
Joe Schmidt’s men would have expected to move from their potent 27-3 win over Scotland and press through to top Pool A for a quarter-final against South Africa.
If Japan could repeat this level of performance however, it could be the Brave Blossoms who top the pool, with the hosts having already bested Russia 30-10.
That would leave Ireland and Scotland scrapping it out for second place, and a possible quarter-final against back-to-back world champions New Zealand.
Garry Ringrose and Rob Kearney bagged early tries as Ireland’s clear plan to expose Japan’s failings under the high ball paid good dividend.
Jack Carty had a fine first-half in deputising for Johnny Sexton on just his second Test start.
But Japan refused to let Ireland gain any control through the dominance of possession, and the hosts’ relentless pace caught boss Schmidt’s men off guard.
Japan will move on to face Samoa in Toyota on Saturday, with a brittle Scotland doubtless now very nervous about taking on the tournament hosts in Yokohama on Sunday, October 13.
Ireland meanwhile will take on Russia in Kobe on Thursday, with much wound-licking to come between now and then.