"A trigger other than Musashi herself."
Fujimaru Ritsuka frowned, pinching his chin with one hand as he recalled the events.
"Think. You're the one most likely to know the answer here."
"I always feel like this guy is a little unreliable. Do detectives usually state their deductions as facts?"
Lawrence, standing to one side, glanced at Leonardo da Vinci somewhat speechlessly.
"Well, Sherlock Holmes is pretty much that kind of person. After all, his deductions are often extremely close to the truth."
"Actually, I rarely do this myself, Mr. Lawrence. It's just that the current situation is rather unusual."
Sherlock Holmes shook his head helplessly and glanced at Lawrence.
"Those other than Miss Fujimaru may think about it as well. I'll offer a hint—try to think of whether there is someone like this."
"In other words—a person similar to Musashi, but not Fujimaru Ritsuka."
Sherlock Holmes raised one finger.
"Suppose multiple wandering Singularities appeared in the same world. Wouldn't that world become a realm entirely out of place?"
"Anything exceptional, abnormal, or beyond all standards could happen. So—following that line of thought, who can you think of?"
"So you mean that, in this world, there is another being like Musashi who can travel between different worlds?"
Fujimaru Ritsuka raised his head and looked at Sherlock Holmes as he spoke thoughtfully.
"Eh!? Isn't that ability supposed to be my special privilege?"
Miyamoto Musashi's eyes widened.
"If we investigate based on that clue, it would indeed be much easier to find the details."
Sakumura nodded.
"Then—let's first consider what is superfluous in this world."
"Us Servants, those Heroic Spirit Swordmasters, Musashi, and this little girl."
Senji Muramasa answered.
"Anything else?"
"There's one more."
Fujimaru Ritsuka immediately thought of that "superfluous" person.
"The Master of the Heroic Spirit Swordmasters—the sorcerer."
"Although we still