When the final whistle was blown on an emotional night in Yokohama, it was evident from the joy on the players' faces that magnificent Japan's history-making triumph over Scotland was about more than rugby.
Typhoon Hagibis left a trail of death and mass destruction with ferocious winds and record-breaking rainfall after hitting landfall south of Tokyo on Saturday.
There was uncertainty over whether the decisive Pool A showdown between the host nation and Scotland would go ahead on Sunday, but the green light was given following a safety inspection on the morning of the game at Yokohama International Stadium.
What followed was 80 minutes of thrilling action as Japan reached the Rugby World Cup quarter-finals for the first time.
Scottish Rugby had talked of taking legal action if the blockbuster contest was cancelled, given they needed a victory to have any chance of being consigned to an early exit.
Instead they may be launching an internal inquest after Gregor Townsend's side went down 28-21 in a pulsating battle.
The stadium was not damaged by the biggest typhoon to hit the Asian nation for decades and a raucous sold-out crowd cheered their team to glorious new ground.
Jamie Joseph's side played with incredible intensity from start to finish, defended stoically and showed their class with ball in hand to set up a meeting with South Africa in Tokyo next Sunday.
The Brave Blossoms waded through knee-high waters to train on the eve of a match that they were not sure would go ahead and although Scotland fought back in the second half, they could not prevent the hosts from advancing.
Japan were relentless after Finn Russell's early try, Kotaro Matsushima whipping their exuberant supporters into frenzy with his fifth try of the tournament.
Keita Inagaki raised the decibels even higher by putting them in front and Scotland looked to be out on their feet after the lethal Kenki Fukuoka - scorer of the only try against Ireland - touched down either side of half-time.
Scotland were struggling to cope with their opponents' expansive style of play; the power, speed and skill of Japan leaving their hopes of qualifying hanging by a thread.
Yet two tries in the space of five minutes from WP Nel and Zander Ferguson threatened to spoil the party, Russell pulling the strings as the tension mounted.
The hosts laid it all on the line as Scotland threw everything at them in an attempt to tear up the script and break Japan hearts.
Joseph's men were not to be denied, though, holding on to make it four wins out of four and secure top spot on a weekend that will be remembered for such contrasting reasons.