Some things could be joked about, but others had to be taken seriously.
For example, the first time Puer turned human, she had deliberately prayed to annoy Loya: "Oh, now, please grant kitty strength, our dear Little Kallen..."
Loya must have been furious. After all, the Lax Copper Coin's Artifact Spirit considered "dear Kallen" her exclusive way of addressing him.
But Puer had also paid a painful price for her moment of mischief: it seemed to have become a fixed formula.
In the Principle God Church's terminology, it was called the Initial Spell Incantation Formula.
This generally occurred with self-created incantations. Unless you made revolutionary improvements later, anyone who wanted to produce the same effect afterward-even you yourself-could not freely change the incantation, because the formula had already taken shape when you created it.
In short, the second and third times Puer tried to turn human afterward, she experimented with many different ways of praying:
In a cold, aloof voice: "Kallen, give me strength."
In a warm, friendly voice: "Please lend me your strength, Kallen."
In cat language: "Meow, meow, meow!"
None of those worked. She failed to turn human.
Exploring step by step and eliminating wrong answers, Puer finally identified one necessary condition and one partially necessary condition.
The partially necessary condition was that she had to pray in something close to a wheedling tone. Without that tone, the success rate might only be fifty percent; in other words, there was a fifty-percent chance it would not activate.
If she merely felt like turning human to walk the dog, that did not matter. At worst, she could pray a few more times and play the odds.
But at a critical moment, she could only choose the most reliable method.
The necessary condition was this: she had to address the