Battlegrounds.

An entity named Etherion Count Munich wishes to write a novel but lacks inspiration. That is when he encounters 86 year old retired soldier, Irene Rose at her final years of her life and offers her a chance for another shot at life at a different timeline in hopes of writing a novel from her life experiences.

Irene Gladly accepts and is reborn 2000 years into the future during The Great World War and with Ehterion as her guide, she once again strives to go out into the new world and experience war for the final time.