Manga Boroboro No Elf San Wo Shiawase Ni Suru Kusuri - Uri San Chapter 1 Top

A traveling medicine seller (apothecary) encounters a severely traumatized and physically broken elf slave who has lost her memory. The Rescue:

It answers the question: What happens after the war ends? For the Elf, the war never ended until a man with a box of herbs knelt in the mud.