Haja no Fuuin is a Famicom game similar to the Japanese version of Miracle Warrior from the Sega Master System.

The game has major differences than the English version though they share many similarities, including the story. The overworld maps are different, spell system is different, items are mostly different, and the events are different.

For context this FAQ walkthrough is very helpful:

https://gamefaqs.gamespot.com/nes/578486-haja-no-fuuin/faqs/69455

This video has an hours worth of gameplay plus a fellow translating some of the dialogue verbally:

https://www.youtube.com/watch?v=u94pkql1zIc

Scans of the Sega Master system game manual might help:

http://www.smstributes.co.uk/images/db/manual_miraclewarriorsusa.pdf

Japanese wiki article

https://ja.wikipedia.org/wiki/%E8%A6%87%E9%82%AA%E3%81%AE%E5%B0%81%E5%8D%B0

Guide for the MSX version which is very similar

http://www.mctv.ne.jp/~knither/kouryaku/Haja-no-Huuin/haja-no-huuin-data03-item01.html

Some of the dumped text may be gibberish or irrelevant to the game. Just note it as such.

Some proper nouns found in the game:

Translation Contributors

Coserma/Kosama (person)

[Enter your handle here]!!

Eratos/Eratea (city)

"the character き appears a number of times, but ぎ doesn't appear at all. So I recommend being suspicious of every ざ you see there"

Gelkis monument

Silvius monument

Rokhod cave/catacomb

Ohod cave/catacomb

Sehod catacombs

Eratos mountains

Penteus mountains

Phrixos mountains

Kokalos/Kolalos forest

メディア Medea (hero)

トレモス Tremos/Treo/Turo (hero)

Argo/Argonaut ship

Odysseus/Ulysses shield

Equivocation Fallacy