The setting of Fate/Apocrypha is a parallel world to Fate/stay night where the Greater Grail was removed from Fuyuki after the Third Holy Grail War and disappeared for many years. Around the 2000s, around the same time as the Fifth Holy Grail War would have happened, the group that plundered the Grail, Yggdmillennia, openly declares their secession from the Mage's Association and that they are in possession of the Grail. The Association dispatches fifty magi to retrieve it, but all but one are instantly slaughtered by Lancer of Black. The one remaining manages to activate the reserve system of the Greater Grail, allowing for the summoning of fourteen Servants in total. This marks the start of the Great Holy Grail War in Trifas, featuring two different factions, the Black Faction, whose members are part of Yggdramillennia, and the Red Faction, whose members were sent by the Mage's Association with the exception of one from the Church. The Grail itself also summons Ruler to act as a mediator of the Holy Grail War.

This book contains anthology comics, illustrations, settings introductions and interviews.

Anything my right hand can hold on to will disappear—I have the ability to make things disappear into thin air. At school, I used to pretend to be an amateur magician and that's how it should've been, that is, until the day I met Alissa. (Source: Chinatown KM)

My little sister is a goddess. Just recently, she became someone who could be called that. If I were to say this to most people, they would probably laugh it off as a silly joke. Or perhaps they would notice the seriousness in my eyes and hurriedly run away. Honestly, I would probably react the same way if someone else said such a thing. That’s why I never do anything foolish like announcing it to everyone around me. But this is the truth. Even if no one believes me, it is real. My little sister, Yui Tōmi, who once lost her life in a maritime accident, became a goddess about two weeks ago—after a series of complicated events. These circumstances are long and convoluted. Explaining them to anyone not directly involved would hardly make sense. And now, I live in this world as an ordinary human with no powers, alongside Magical Girl Alyssa Clarno-Stolling Light. Conversations at the start of a new daily life, or words exchanged at the end of the extraordinary—one could call it an infinite intersection. At t he place where twisted lines overlap— The new series of the popular work RIGHT×LIGHT finally begins! (Source: Shogakukan, translated)