Fate/Apocrypha Episode 17: Traumerei
Episode 17 of 25 of Fate/Apocrypha, aired October 29, 2017, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Ruler takes Sieg out on a date in Trifas under the guise of luring out Assassin of Black but ends up enjoying this reverie more than she expected.