Back in May 2013 Japanese fans in Osaka had "Battle Royal", headlined by Takayuki Hosokawa and also featuring Cyborg Nawatedani. The poster is a bit of a weak one if we're being honest, though the name for the show is obviously a solid one. A real shame they didn't do more with this particular poster.
Every major fight needs good promotional posters. This part of AsianBoxing will try and feature some of those posters.