A young pharmacologist and researcher in Japan died from overworking, and was reincarnated in a Medieval Parallel Europe.
He was reincarnated as a 10-year-old apprentice to a famous Royal Court pharmacist, had attained an inhuman skills of ability to see through disease, material creation, and material destruction.
In a society in which dubious medical practice are rampant, price gouging thru the monopoly of the pharmacist guild, and good medicine aren't available to the commoners.
