From mochi*mochi:
A new part-time worker transfers to the children's book section where Ritsu Izaki works. He seems to be attached to Ritsu, but he always slacks off at work...!?
Takaboshi Asako
Related works
From J-Novel Club:
Lydia Carlton is a fairy doctor who can see and communicate with fairies. When she embarks on a journey to visit her father in London, she’s kidnapped by a young man named Edgar Ashenbert who introduces himself as an earl and requests Lydia’s aid in searching for a treasured sword that will prove his status. Although she finds his story dubious, Lydia agrees…