[Disclaimer : This is just a translation and the cover is not mine] Raw: 为了成为王和魔术师 Synopsis: Natsukawa Naoki traveled through time and arrived in the Type-Moon world. He knew nothing about Magecraft, had no connections, and was busy working part-time jobs. He thought he would be the most pathetic among time travelers, but after being chosen by the Holy Grail and summoning King Arthur (Prototype), everything changed. Especially after the Holy Grail War ended— Saber became his own ???, and he became Arthur (Prototype) himself. On a certain day, in a certain month, in a certain year, in Chaldea—it was still the familiar corridor, still the familiar corner. “Sajyou Manaka, don’t come any closer! Arthur and I don’t even know each other, really!” Emergency call!
This story is somewhat similar to The Card Apprentice because of the main character’s occupation, but much more comedic. Make no mistake though, it is not a rewrite or a fanfic of The Card Apprentice, it just similar.