Morr, a former member of the hero's party, was unlucky enough to be captured by the Demon King and turned into a girl.
Just as she was about to end it all to avoid unlocking the defeat CG, she learned that Eliza, the Vampire Queen, was willing to protect her!?
The price was that Morr had to help her and call her "Big Sister" in public?
To survive, Morr could only accept this deal, which was laden with implications of training and discipline.
Still, Morr believed in her willpower!
And so, the vampire girl Ellie continues to walk the path of never falling into sisterly corruption!
