Originally Posted by
Reverse_side98
>Thank you so much for finally giving me an idea for what happened to the world of Requiem
Need some explanation for this.
Requiem is set in a timeline where everyone in Mosaic City has a mini-Grail inside their heart, which allows each citizen to summon a Servant and replenish their Command Spells on the regular. It still hasn't been explained how that happened and why magecraft still works after becoming public knowledge.