This forum is funny. We have all these random fights that nobody cares about .... and deep down the page is a sparse thread covering a P4P talent who unified the bantamweight titles, moving inexorably towards one of the most consequential showdowns in boxing between two of Japan's arguably best all-time fighters ever.
First, my thoughts on Tenshin: he is a "cute" fighter. Lots of punching diversity, very technical and sharp, and he has an instinct for entertainment. However, without his freakish kicks, knees and spinning attacks he can only go so far. I'm sure he could give any champion GREAT work in the gym but he does not seem cut out to succeed at boxing's highest levels. His punching power isn't there for one, and there are questions about how he will deal with adversity. Although he did well with the cut suffered last night. I might be wrong--and if he does succeed in boxing we all have to recognize this wunderkind and what he has done in kickboxing (he might be an ATG), and now boxing.
Nakatani is just an animal. He has extreme confidence in his chin and power and is not afraid to throw power with power. I think he will engage Inoue in a firefight and this will be very dangerous for both men. If Junto has an all-time chin, Inoue might be in serious trouble here. I haven't watched Nakatani's fights (just some highlights) to evaluate his defense but his carefree, predatory attitude would also play into Inoue's hands, as he can be defensively responsible and will likely not get hit by the same counter twice. At this point, I give Inoue 60-40 odds but even if he does win, he will likely get badly hurt at least once.