Azami’s reason for leaving – being fed up with human politics and malice – feels realistic for someone who’s been through three years of conflict and backstabbing. It makes sense he’d want to escape to a peaceful world. But the irony that he returns to a zombie apocalypse is great storytelling. The author sets that up nicely by having him complain about corruption and then dropping him right back into chaos. That kind of misdirection works well.
The narrator's flat delivery of "I don't know" when asked what he wants to do is so painfully relatable.
I'm a little worried about the "chosen one" vibe. Beo has special Observation Haki, he's got good looks, he's clever, and he's immediately accepted by the Pirate King's crew. The potential for him to be a flawless protagonist is high. However, the story shows his limitations: he's not that strong physically, he can't yet coat bullets with Haki, he can't perceive Roger's high-level techniques, and he got owned by Garp's cannonball. That pulls him back from being too OP early. Also, his reasoning for choosing the gun path shows he's cautious about competition—that's a humanizing flaw: he's avoiding hard rivalry. Maybe later he'll realize he can't avoid all obstacles. I hope the author gives him some personal failures besides "I couldn't copy that technique." Maybe he loses a fight to Shanks in a spar or gets humbled by a sea king.