The highlight for the day, for many, was the appearance Iwao Hakamada who was handed an honorary WBC world title by Hideyuki Ohashi. Hakamada, who was wrongly convicted for a series several decades ago, was effectively the guest of honour at the show and is at the forefront of the picture opposite.
It wasn't all about Hakamada however and fans got to see a real celebration of the sport. This included an enthralling sparring session between WBC Light Flyweight champion Naoya Inoue and WBC Flyweight champion Akira Yaegashi which ended with the two men being given a round of applause, a brilliant spar between Shingo Wake, the OPBF Super Bantamweight champion and Bantamweight champion Ryosuke Iwasa and also a spar between Satoshi Hosono and Hidenori Otake, both of whom are Japanese national champions.
As well as the sparring there was also mitt sessions which included work by Takashi Miura.
In total there were 29 active champions with the likes of Takashi Uchiyama and Naoko Fujioka both turning up as well as several notable non-champions, including Tomomi Takano who we believe did a talk for the fans in attendance.
The day was nothing short of sensational and we're hoping that other countries will follow suit and do similar events.
(All pictures courtesy of boxingnews.jp)