I even thought at first that this movie would be average, but it's bad. I only watched this movie because I translated it into my language, Portuguese. I didn't know what it was about because I didn't read the synopsis. This anime is basically a generic Isekai, only from the 80s. I like old anime, but that doesn't mean I will like anything. The story is very cliché, and there is nothing great about it. Well, it would be average if it wasn't so obvious who the villain is. The villain is literally a guy who is not happy with the peace in the world and decided to makea mega plan to start a war.
The movie is basically that. A generic Isekai with a not very good conclusion.

The best thing about this movie is the character design. I like the design of old anime.

The characters are not great, but they are not bad.
The animation is pretty average for a movie.
I don't even remember the OST.

Anyway, it is just a random bad movie I picked up and wasted my time translating. I hope someone watches it, at least. Haha