"[Harmony of Hard and Soft (Purple-Gold)] is an Affix I absolutely need!"
This Affix was a martial arts Affix. The physical growth driven by martial arts for someone like him was not classified as magic in that world, but as an esper ability.
The reason was simple...
The physical enhancements brought about by a three-digit Affix would shatter that world's understanding of the human body.
And physical abilities that surpassed ordinary humans were considered those of "gifted individuals" in the Index world—in other words, "Gemstones" within the esper system.
Although his own physical abilities might be somewhat beyond expectations, the esper abilities in that world were equally outrageous.
Accelerator's "Vector Control" had grown from initially stopping the Earth's rotation to, after massive development later on, being capable of pulling entire galaxies.
As long as he used this Affix as camouflage and gradually revealed his strength, the natives of the Index world would find it perfectly reasonable.
After all, neither the magic side nor the science side understood the true nature of Gemstones' esper abilities.
There was no need to mention the science side. It had only been established for a few decades, and its entire system had not even reached the level of science fiction.
There was even less need to mention the magic side!
So-called magicians were an extraordinary system that had originated in that world from imitating "gifted individuals."
Although that system, after developing and becoming complete, had entirely surpassed the Gemstone espers, who had never produced anyone capable of destroying the universe.
"But without a doubt, among the three-digit Affixes, this is the most suitable one for me to bring to that world!"
"After all, my other Affixes are either ones I cannot split off for the time being, or they contain far too many elements of