Me no Mae no Sangeki de Zense wo Omoidashita kedo, Amari ni mo Mondai Yamazumi de Ippai Ippai desu.

After witnessing injured soldiers get abandoned, the countess of a remote region, Neon regained memories of her past life as a nurse.
Although she started using modern medical techniques like triage in order to treat the injured soldiers, problems like her husband, who is the leader of the knights order in the remote region confronting her, are piling up!

(Source: Bushiroad, translated)