Setting Up Defensive Systems Part 2

The process of inscribing a core was much more difficult than I had imagined. Each stroke of a runic letter had to hold the same amount of mana as the last. And each runic letter had to be absolutely perfect without any defects, or it could cause the core's effects to weaken. I guess this was the reason Sei went into a state of concentration when she inscribed the core at the slums. It is indeed a delicate job. Just to write all the information and instructions about the magic circles, I was going to be connecting to the core took almost an hour and a half.

I wiped the sweat from my brow, and I looked at my inscription with a satisfied nod. "Very well done, but…. Faith, why a metal washbasin? Why pitfalls? Why a tree trunk that swings in and hits people!? What is this banana peel thing!? And seriously, what is a Truck-kun!?"