Episode 6 was pretty sweet,
Previous episode: Enter Aragaki and Gansaku's past seeing Aragaki haunts him, great drama there.
Aragaki, my favorite great interesting major rival antagonist

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Joe getting up from the 9th count to continue to fight Aragaki was great.
Joe to distribute his weight taught by Gansaku was great.
Aragaki/Gansaku's flashback memories was great/interesting.
Aragaki developing having a change of heart forfeiting at the start of the 5th round was sweet

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Joe vs. Aragaki was a great intense boxing fight.
Aragaki getting along reconciling with Gansaku giving him a betting slip for Joe from his war days was sweet/touching.
Mikio appears, my favorite great new rival villain, a terrible smug arrogant creep having a plan to stop Joe from making it to Megalonia, he'll fail, hehehe

, nice cliffhanger.