Half-demon twins Towa and Setsuna are separated from each other when a mysterious tunnel sends Towa into the future, where she is found and raised by Kagome Higurashi’s brother Sota.

After all, Sesshomaru’s mom has not often appeared in the anime. She was briefly shown in episode 22 of Yashahime: Princess Half-Demon before popping into episode 23 just as quickly.