One day, Wakana, a nurse, suddenly trips into another world. There, she finds herself on a battlefield filled with wounded members of the Gekko Crusaders, who are being hunted as a defeated army. Wakana is perplexed, but her sense of duty as a nurse leads her to make use of her modern nursing knowledge, such as how to treat broken bones, and she struggles mightily!

After saving the life of the second prince Shade, the head of the defeated army, she is recognized for her skills and decides to travel with the Gekko Crusaders to a neighboring country... During the journey, Wakana is exposed to a harsh world where tomorrow's life cannot be guaranteed, and she becomes anxious.

Then Shade tells her, "Whenever you feel anxious, jump into this chest"...!
A different world trip love fantasy of a handsome second prince and a new nurse!

Piccoma