So the MC is a doctor trying to find a cure for cancer or something bc his little sister died from it. He died from overworking and isekaied into this kid from the euro centric magic world. I think NU also has the og novel on here. The parts I remember are: - I think he was blond with blue or green eyes in the manga. Has a sister ( Blanche or Blanc) who reminded him of his previous sister. - has a blessing from a god, or something like that. He can also see the sickness or injuries from a person with one eye. - He goes on the save the queen and the whole population from tuberculosis. Also invented the microscope in that world. - Later he became the imperial doctor and opened his store. Then a branch store to help a guy. - He didn't have a shadow and was targeted by the church for a while. They later gave him a staff that only he can touch after realizing he has goes blessing. Thanks in advance!