Looking for time-slip works similar to that of Jin or Nobunaga no Chef where the person applies his/her modern knowledge.
Or Isekai works like Risou no Himo Seikatsu or A Realist's Kingdom Reform Chronicles where the transported character does not end up like some super-hero - instead uses his wits and "earth" knowledge to the new world.
Spoiler (mouse over to view)
I do realise that in both Risou no Himo Seikatsu and Realist Reforms the hero gets some magical power, but the main theme is the usage of earth knowledge
Cheers,
gurumao.
