Ninety minutes and almost all of it is one fight, and it still leaves you wrecked. Sanada Kazuki is the worst possible first title defense: a medical student who studies Ippo like a case file, throws the Smash that curls around a guard nobody can raise in time, and then goes back to the hospital where Kumi works and everyone there knows exactly who he is. That corner subplot lands harder than it should, Kamogawa staring across at Hama Dankichi, an old rivalry getting a second round through two younger men's fists. When the Dempsey Roll finally comes, you have already watched Ippo eat enough punishment to earn it. Yes, the choreography borrows rhythms from the Sendo bout, and Sanada is more obstacle than person. Doesn't matter. It hits the same nerve Rocky and Ashita no Joe hit, and you will be sitting forward the whole time.
Ippo has finally claimed the Featherweight championship belt, but wearing the crown means defending it against hungry challengers. His first defense comes against Sanada Kazuki, a former Jr. Featherweight champ with an unexpected edge: he's a medical student whose hospital workplace just happens to employ Kumi, the woman Ippo loves. Things get messier when Sanada's corner includes Hama Dankichi, an old rival of Kamogawa's with decades of grudge fuel burning underneath. The fight becomes personal on multiple fronts. Sanada has home-field advantage with the entire hospital staff rooting for him, which means even Kumi finds herself caught between loyalty to her coworkers and her feelings for Ippo. Ippo must fight not just for his title, but to prove himself in the eyes of everyone who matters to him. Boxing has always been his way forward, but this time the ring alone won't be enough. His opponent fights with knowledge and institutional support; Ippo fights with everything he has left to fight for.