The Ancient Magus' Bride Episode 15: There Is No Place Like Home.
Episode 15 of 24 of The Ancient Magus' Bride, aired January 21, 2018, 25 minutes. Available with English subtitles and dub where released.
Episode summary
With King Oberon taking Chise into the Fairy realm for recovery, Silke becomes agitated waiting at home. Chise slowly recovers under Dr. Shanon's care, a fairy that was raised as a human.