Erosion 3

[To raise the intensity of erosion, two things are needed.]

“Two things?”

[Yes. Put simply, it works on the same principle as diffusion.]

Diffusion? That was anything but simple.

The black mage continued, explaining with one tentacle folded across its body.

[Erosion happens because of differences in concentration between worlds. So what’s the most important thing?]

“Raise my side’s concentration. The bigger the gap, the faster the erosion.”

[Oh? Not bad. You got it in one shot.]

The black mage blinked its single eye, genuinely surprised. It seemed it hadn’t expected me to get it right away.

Honestly, I was surprised too. I had just said something at random...