Yashahime: Princess Half-Demon

In feudal Japan, twin sisters Towa and Setsuna-half-demons-are torn apart during a forest fire. While frantically looking for her younger sister, Towa stumbles into a strange tunnel that transports her to modern-day Japan. There, she is taken in by Sota Higurashi, Kagome’s brother, and his family, who raise her as their own. A decade later, the tunnel between the two eras reopens, and Towa finally reunites with Setsuna, now a demon slayer serving under Kohaku. But to Towa’s dismay, Setsuna seems to have forgotten her completely.