 If you liked
Sengoku Komachi Kuroutan: Noukou Giga
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 ...then you might like
Fangkai Nage Nuwu
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Two smart main characters who possess modern knowledge and are able to reconstruct immensely helpful tools and education principles to the people of the era they appeared in (the past or a fantasy-like past that's obviously not as developed as the present).
It's rewarding (for the reader) whenever new items, tools or weapons make their appearance.
<> SKK:NG no magic, only hard work; Fangkai Nage Nuwu: there is magic by witches and from other sources.