The Nurse's Bodyguard

This is an Apple Books audiobook narrated by a digital voice based on a human narrator.
A danger she can't understand 

Claire Olsen has been in Seoul, South Korea, for only one month. She doesn't know anyone—aside from her roommate and her colleagues at the medical center—and she certainly doesn't know why someone would attack her. Desperate to forget about the violent mugging, Claire tries to focus on her nursing, but one man won't let her hide from the truth. 

Naval intelligence officer Luke Llewellyn is determined to keep Claire safe, whether she wants him to or not. But finding out why she's been targeted means helping Claire unearth the secrets of her past. And following his heart means trusting Claire with his own secrets….