"If you're lucky, your magical energy may be able to adapt to the world you're currently in. If you're unlucky, then at the very least, your Magic Circuits may be unable to function properly."
"Ritsuka, you should know this as well. The communications device you've always used may look like a technological product, but it's actually a fairly advanced Mystic Code. Since it's a Mystic Code, it needs your internal Magic Circuits to activate it. Otherwise, it can't be used."
"Ah, that's true. At first, I couldn't even cast support magecraft."
Fujimaru Ritsuka looked at the two Command Spells on the back of his hand, an expression of realization appearing on his face.
"Hmm, so you adapted midway through? Or did someone help you adapt?"
Sherlock Holmes gave Fujimaru Ritsuka a thoughtful look.
Though he could not make much of it.
But wasn't deduction a detective's most important ability?
"Ah, now that you mention it..."
Fujimaru Ritsuka frowned.
He remembered something.
It had actually only been two days ago, on the mountain behind the village where Senji Muramasa's hermitage stood.
"Was it Miss Shuten Douji!?"
"Wait, could it be that Miss Shuten Douji understood something...?"
If anyone in this Singularity had tampered with Fujimaru Ritsuka's Magic Circuits, it could only have been Shuten Douji. There was no second possibility.
"Master is referring to Shuten Douji... Could it be that Shuten Douji's record became connected to Chaldea's?"
Kotarou frowned as well.
"I-I don't know."
Fujimaru Ritsuka was not entirely sure.
Shuten Douji had indeed done something to his Magic Circuits. Other than that, perhaps the thing that left the deepest impression on him was Shuten Douji punching a huge hole through his stomach.
But why...?
"This old man does not understand what you are saying, but if it is the Karma