Rui's decision was not impulsive but actually quite well-thought-out, as always. If the fauna of the Forest of Fear had evolved such that they had no sense of fear innate to them and would go extinct in self-destructive acts without fear induced in them by the Forest of Fear, then it made sense that only the strongest creatures of the region would be able to survive the period when it lost its fear-inducing substances.
In a Squire-level region, those strongest creatures were Senior-level creatures. It meant that Rui would need to apply his trance hypnosis to these creatures and then subject them to his Plurichroma domain to create SOUL models for their memories.
The issue was that being Senior-level creatures, bullying them was not nearly as straightforward as it had been for the catoblepas or the blackhinds. Senior-level creatures were fully capable of resisting Martial Seniors, even if the latter was much stronger than the former on an individual basis.
