Manga Isekai Yakkyoku

The protagonist of the story is an ordinary young pharmacologist who overworked and died in Japan. And by the will of fate, he was reborn in Medieval Europe, where he became a disciple of the pharmacist of the royal court. Here he received magical skills that allow him to see diseases, as well as material energies that affect a person. At the same time, pharmacists have seized power in society, who charge exorbitant prices for dubious medical practices, which makes all medicine inaccessible to the common population. Then the guy decides to cheat and save ordinary people. He opens his own pharmacy. He will do everything to fight fraud and help poor people get really high quality medicines. The bottom line is that the guy has not lost his memories of life in the modern world, so he will use all modern research to achieve maximum success in the medieval world. Now he can live life to its fullest!