 If you liked
Sengoku Komachi Kuroutan: Noukou Giga
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 ...then you might like
The Divine Surgeon
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Time travel back to 500 or 1000 (or even 1500) years in the past, where life was rough to say the least, science totally inefficient compared to now, with people dying left and right to diseases or wounds that can be cured with current medicine, therapy and/or surgery.
The MC introduces this modern science and techniques to these people and is seen as an extremely young master of knowledge.
<> SKK:NG: Focus on agriculture; The Divine Surgeon: Focus on surgery