Today those two men took part in their weigh in for their bout and both men came in on, or under, the contracted 140lbs.
The unbeaten Japanese puncher looked in amazing shape whilst coming in bang on the 140lb limit. He looked like a fully fledged Light Welterweight and it's clear that in 2018 he will have his eyes on titles, though of course will need to come through here.
The visitor, who is actually risking his OPBF ranking, came in well was way under the limit, coming in at around 137.3lbs. He looked, like many Koreans, very lean and like he could have done with packing on a few more pounds.
Although it's unclear if, or when, this bout will be shown on TV there is hope it will be shown uin the new year on a tape delay broadcast.
(Image courtesy of boxmob.jp)