Fente's Innate Spirit Art allowed the neural pathways and muscle fibers in parts of his body to grow and proliferate within a short span of time, greatly enhancing the mobility and precision of his limbs.
At first glance, such an ability seemed rather unremarkable.
After all, compared to other powerful and ferocious monsters, sapiens—who excelled in intellect yet possessed only two hands and two feet—were never particularly gifted in physical ability. Their limbs naturally had limited developmental potential. What was more, through a series of General Spirit Arts such as "Spirit Eye," "Spirit Ear," and "Spirit Void," Nightmare Sensors with other abilities could achieve similar effects as well.
Thus, if this type of Innate Spirit Art awakened in a human, it would undoubtedly become an ordinary, perhaps even weak ability, greatly restricting its wielder's upper limit of strength.
However, when that wielder was Fente, the situation was entirely different.
Because Fente's physical structure was utterly unlike that of an ordinary sapien with only two hands and two feet.
He was an insectoid.
The only parts of Fente's body that resembled those of a human were "everything above the chest" and "everything below the pelvis."
Between them, at his waist and abdomen, stretched a slender insect body over thirty meters long, with more than a hundred tiny segmented legs growing from each side like those of a centipede.
Fente usually curled this insect body into a ball, successfully fabricating for himself the image of a bloated old woman. Only when he got serious did he reveal his true form.
The racial talent of being born with more than a hundred segmented legs, combined with the muscle fibers and neural pathways produced by Fente's Innate Spirit Art, allowed every one of those tiny legs to become a compact, nimble, and precise arm.