It is a bit of a mess, which further contributes to Wano's abysmal writing quality.
I think Oda wanted to deliver a message via only oneliners, but it didn't land. Not just in translation, since many Japanese readers were also weirded out by Hiyori's speech.
Ideally, it was supposed to go like this:
1. Orochi makes villain remark that "Oden was burn to boil" based on Oden's food name. This just as Oden heroically sacrifices himself for the country, thus staining the moment.
2. As soon as Yamato starts calling herself Oden, Kaido, who is shown to be a fatalist, thinks that her fate is sealed and that she too will have a gruesome death, so he locks her up. This further solidifies the theme.
3. Hiyori defeats Orochi with his own line, in what's supposed to be a catharsis for us readers. Oden may have been destined to sacrifice himself, but Orochi too was doomed from the start.
4. The teacher reiterates Hiyori's line, reassuring the Wano population that "Kozumi (coal) was born to die", as in, the bad guy was meant to be defeated from the beginning, so even in future tyrannical situations, the people should have faith that justice will be done.
Kaido's obsession with Oden is baked into what Oda's trying to convey with nomenclature alone. Maybe he should have spent a couple more dialog lines to make everything more seamless.
I think Oda wanted to deliver a message via only oneliners, but it didn't land. Not just in translation, since many Japanese readers were also weirded out by Hiyori's speech.
Ideally, it was supposed to go like this:
1. Orochi makes villain remark that "Oden was burn to boil" based on Oden's food name. This just as Oden heroically sacrifices himself for the country, thus staining the moment.
2. As soon as Yamato starts calling herself Oden, Kaido, who is shown to be a fatalist, thinks that her fate is sealed and that she too will have a gruesome death, so he locks her up. This further solidifies the theme.
3. Hiyori defeats Orochi with his own line, in what's supposed to be a catharsis for us readers. Oden may have been destined to sacrifice himself, but Orochi too was doomed from the start.
4. The teacher reiterates Hiyori's line, reassuring the Wano population that "Kozumi (coal) was born to die", as in, the bad guy was meant to be defeated from the beginning, so even in future tyrannical situations, the people should have faith that justice will be done.
Kaido's obsession with Oden is baked into what Oda's trying to convey with nomenclature alone. Maybe he should have spent a couple more dialog lines to make everything more seamless.