Two Isekai Girls and Other Undead

Worlds, lives, and goals change, but something always repeats: I’m not a dragon’s concubine and not a demon’s lover—yet every time I end up close to them. But this time I have a trump card: no one knows who I really am. Oh, how many interesting things I can cause while staying incognito!

The third, final book in the series “Between a Demon and a Dragon.”