Tani Mizue

Can memories ever be repaired? Tired of her work and love, Akari has moved to the town where she spent a little time of her life there. At the corner of the desolate shopping district, she meets the owner of a watch store that has a strange plate on the display window. Thus, Akari starts her new life. (from mangaupdates)

The story is set in 19th century England and centers on a "fairy doctor" named Lydia. Her life takes a 180-degree turn when she meets a legendary blue knight count named Edgar and his crew. He hires her as an adviser during his quest to obtain a treasured sword that was supposed to be handed down to him by his family.