Despite having been turned into a woman in the process of returning to the past, Adel continues devoting herself to protecting her beloved liege, Princess Euphinia, as one of her knight escorts.

With the Legion Saint incident still casting a quiet shadow over her heart, Adel accompanies Euphinia on a diplomatic mission to the Holy Kingdom of Rakul—Adel’s birth country. For some reason, the guide assigned to their delegation welcomes Adel with almost excessive enthusiasm. And to her even greater surprise, the Rakulian ceremony she participates in alongside Euphinia reveals that Adel possesses the blood of the Rakulian royal family! Will this revelation tear the two apart?!