Japan once again proved it rules the roost of Asian rugby as the men and women's teams both beat Hong Kong on Saturday to claim their respective Asia Rugby Championships.
The Brave Blossoms ran in eight tries in a 59-17 victory, while the Sakura 15 crossed six times in a 30-3 win to ensure both sides finished with perfect records.
The men's tournament is a three-team competition with Japan playing Hong Kong and South Korea both home-and-away, while the women's event was a two-team affair following the late withdrawal of Kazakhstan.
"The motivation of the team was very high and the players were very hungry for success. That's why they were able to play at such a high level," Brave Blossoms interim coach Ryuji Nakatake said after the game at Prince Chichibu Memorial Rugby Ground.
Japan came into the game having conceded just two penalties in three games.
But it was the visitors who started brightest with Ben Rimene banging over an early penalty and then converting Adrian Griffiths' try after the lock made the most of a good break by Rowan Varty.
"We knew Hong Kong would put us under pressure," Nakatake said. "But we couldn't react early on to them or the referee."
Ten points adrift with 20 minutes on the clock, the hosts were stung into action.
And they hit back with tries by Naohiro Kotaki, Takuya Ishibashi and Ataata Moeakiola as they put the phases together and played with far more patience than in the opening quarter.
Ryota Nakamura converted all three and added a penalty in the 40th minute to make it 24-10 at the break.
"The focus at halftime was to avoid giving penalties away and keep our discipline," said captain Keisuke Uchida.
And with the words of their coach and captain still ringing in their ears, Hiroki Yamamoto went over a minute after the restart following some good work by fellow flanker Shokei Kin.
That score brought up the bonus point Japan needed to clinch the title, its ninth straight since the competition became an annual affair.
Hong Kong responded well with a try by James Cunningham but from there on in it was all Japan, with Kin, inside center Ishibashi and right wing Moeakiola playing leading roles.
Ishibashi grabbed his second five-pointer in the 47th minute before turning provider with a superb pass behind the defender to put Doga Maeda away for Japan's sixth try.
Moeakiola also bagged a second as he powered past a couple of would-be tacklers before the pack had its moment of glory pushing the Hong Kong scrum pack and earning a penalty try.
Nakamura, who showed a wide range of skills at flyhalf, finished the day with a perfect eight conversions as Japan belied the fact that this was in essence a second- or third-choice side.
"From a Hong Kong perspective the word frustration springs to mind," said head coach Leigh Jones. "There were patches of the game when we looked good and competed against Japan. But there were others when we made too many errors and were ill disciplined."
Earlier, Japan's women proved too quick in attack and too tenacious in defense as they followed up their earlier 39-3 win in Hong Kong.
High school students Shione Nakayama and Riho Kurogi both scored for the Sakura 15, which featured six teenagers in their squad, with Saki Minami, Mizuki Honma, Yuki Sue and Ai Hyugaji also crossing the chalk.