On April 21st 2011 Ohashi Gym held the 36th Phoenix Battle, featuring the likes of Go Onaga and Ayaka Miyao. The poster looks like it's less a boxing poster and more a poster for some kind of movie or something. It's not awful but it's certainly not a great poster for a boxing event.
Every major fight needs good promotional posters. This part of AsianBoxing will try and feature some of those posters.