Mm, back when she and Harano passed by the area around Mount Fuji by sea, Harano was quite eager to show off his knowledge of history, saying that the name "Fuji" was actually given by the Ainu people, and that barring any surprises, the Ainu would probably never see this sacred mountain, which held special meaning for them, ever again.
At the time, Ah Man instinctively questioned him, thinking Harano was just making things up again, but now that she'd learned the Ainu language, she discovered that "Fuji-san" did seem to be named by the Ainu—"Fuji" is a transliteration, and in the Ainu language, it means "fire hearth." Presumably, the Ainu of old watched the active volcano constantly spewing smoke and gave it that strange name.
The old hunter Zha Pingnong's facial muscles twitched, and for a moment, the scars left by a black bear in his youth turned a bloody red, then slowly faded, and he said dejectedly: "Yes, we can only leave. We... are no match for the Yamato people."