Situated in the Fate universe between Fate/Zero and Fate/stay night, Lord El-Melloi II’s Case Files has El-Melloi—formerly known as Waver Velvet—investigating magical mysteries in London with his new apprentice Gray. Following the previously-released episode 0, the show proper begins on July 6, and you can sample some of the intrigue on the way along with the OP and ED themes in a new promo.
Since the YouTube PV is region-locked, here’s the official Twitter version.
— TVアニメ『ロード・エルメロイⅡ世の事件簿 -魔眼蒐集列車 Grace note-』 (@elmelloi_anime) June 27, 2019
Source: Comic Natalie