"Master, what are you saying?"
A confused Hatsune Miku asked him directly.
Su Mo had only bestowed upon her the ability to evolve; he hadn't given her knowledge of the outside world. She didn't know what the worlds beyond looked like, nor did she know what Su Mo's initial catalyst for the Mystic was.
It was precisely because of this that Su Mo became even more convinced that Hatsune Miku's idea to create a "harem schedule chat group" was no mere coincidence.
"I suddenly realized something. It's just a guess for now, but if this theory holds, then I finally know why this 'miracle' chose to descend upon my head of all people."
Su Mo spoke calmly, his gaze sweeping over the names of the original four members of the Dimensional Chat Group.
Rin Tohsaka represented the Type-Moon world. While her personal power level wasn't exceptionally high, the world she inhabited contained the "Swirl of the Root"—a true First-Class Perpetual Motion Machine. Furthermore, Type-Moon's Third Magic, while not strictly "infinite energy" in the absolute sense, was indeed the most cost-effective method for achieving immortality. That world alone offered both a guaranteed floor for survival and a First-Class prize, satisfying every one of Su Mo's initial needs.
Erica Blandelli represented the Campione! world. Though that world also faced an apocalyptic prophecy and didn't have an extremely high power ceiling, it was the perfect environment for Su Mo to utilize Mystic data and understand the essence of mythology. Specifically, the "Pandora's Dark Ritual" was essentially a "bonus stage" for someone like him.
If Type-Moon was the "Free Trial" level, then the Campione! world was a reward stage specifically designed to hand the "Hero" the "best sword in the village." Once he obtained a God-Slayer's Authority, obtaining the Third Magic would be trivial.
As for Madoka Kaname and the "Law of Cycles" she represented—that was the ultimate "noob-friendly" stage. With Su Mo's wisdom, even if he were a mere mortal, he could use pure strategy to manipulate that world's mechanics and ascend to a Multiversal-level existence. In other words, even if Su Mo had zero interest in the other two worlds, he could have "power-leveled to 9999" in Madoka's world alone.
By then, the rewards of the Root in the Type-Moon world would have been open to him unconditionally. He wouldn't even have had to take a single risk to become a Multiversal powerhouse ruling the Root—perhaps only a fraction weaker than he was now.
He hadn't noticed it before, but looking back, these three initial worlds were essentially a "Starter Pack" configuration. They were low-difficulty reward stages that guaranteed a "Clear" as long as you picked up the prizes.
As for the final member, Kanae Kocho...
Su Mo pondered for a split second, and the conclusion in his mind became crystal clear.
The Demon Slayer world offered Su Mo effectively zero help. Although Su Mo used Breathing Styles in the beginning, he didn't actually need them; with his comprehension, he could have invented hundreds of other combat styles. Looking back, that world had zero value for his strength—it was a standard Fourth-Class universe.
And that was exactly why Su Mo was now certain of one thing.
The Dimensional Chat Group—the initial catalyst of the Mystic that had led him to this point—was exactly what Miku had suggested. It was likely just a "Harem Management Chat Group."
Kanae Kocho didn't need any "power value" to join. Having the three Butterfly Sisters was value enough.
Now, there was a simple way to verify this hypothesis and determine if his guess was correct.
[Su Mo: "@Miku."]
[March 7th: "What's up with Miku? Did Lord Su Mo see something?"]
[Rin Tohsaka: "Wait, March 7th, how did you know I spent the night with Lord Su Mo?"]
[Erica Blandelli: "?"]
[Kanae Kocho: "?"]
[Madoka Kaname: "?"]
[Jibril: "Who was even talking to you?!"]
Su Mo's sudden message in the group chat caused immediate confusion, while Rin Tohsaka took the opportunity to flex, sparking a wave of indignation. For a moment, the group was in its usual state of chaotic banter.
In the past, Su Mo would have dismissed this atmosphere as the typical, boring interaction between group members. But now, if his theory was correct, this specific atmosphere was the very reason the chat group existed.
As for the action needed to verify his theory, Su Mo had already performed it.
If the Dimensional Chat Group was truly a tool created in the future by a version of himself who took the scientific path... then his words would inevitably receive a response.
Sure enough, after a few seconds of silence, an unfamiliar ID lit up in the group chat.
[Hatsune Miku (Group Admin): "I am here, Master."]