Where does the story begin? Oh, I remembered.
One day in Chaldea, Cathy Palug kicked Merlin away, and Merlin disappeared.
That day, there was an atmosphere of sadness in Chaldea. El-Melloi II cried bitterly and mourned for his colleagues, saying: "Merlin, please come back quickly. I am so tired from working overtime alone——"
"Oh, is this a different world?" Merlin said, looking at his obviously smaller hand, "What a beautiful world, no overtime~ By the way, it's time to update Magic☆Merry!"
Things to note:
1. The protagonist is Merlin from FGO. The private design unifies HP with Merlin from the Fate worldview. They are both this old gangster (crossed out).
2. Private HP magic and Fate magic are the same thing.
3. Merlin is a destructive being, because I like [Manual Funny]
4. Why doesn't Merlin just get rid of Lao Fu? Because he prefers to see the growth of his juniors through hard work rather than getting rid of trouble directly [actually he is too lazy to do it]
5. This Merlin is the one in Artoria's worldview, and its gender is male [emphasis added]