Upon being sent to live with relatives in the countryside due to an illness, an emotionally distant adolescent girl becomes obsessed with an abandoned mansion and infatuated with a girl who lives there - a girl who may or may not be real.
Sophie, a young milliner, is turned into an elderly woman by a witch who enters her shop and curses her. She encounters a wizard named Howl and gets caught up in his resistance to fighting for the king.
In 1879, Kenshin and his allies face their strongest enemy yet: his former brother-in-law Enishi Yukishiro and his minions, who've vowed their revenge.