Most distinctly, Louisa remembers three of her former lives. In each of them, she was the childhood friend and lover of the hero, the hero promised to return for her, and the Demon Lord was defeated—but the hero abandoned her.

While Louisa waves off her lover Graham as he ventures off to defeat the Demon Lord, she promises to wait for him. However, she knows more than anything else that he won't return. Not wanting to waste away her youth like in her previous lives, she seeks work in the city where she hopes to meet new friends and perhaps find new love.

But not everything is as it seems. Louisa's dreams are plagued by a mysterious girl and a dark-haired man who calls for "Jun." Her continued connection to the hero may not be pure coincidence, and the truth to all of this lies buried deep in her memories of the past.