Kage Vicci!

Stage 4 profound beasts are said to be the apex of all profound beasts, rarely seen in the world. Their appearances are often met with fervent hunting, driven by various motivations.

However, such beasts have never been spotted on Kokoro Island, because if they were to breed, the island would sink when their infants playfully wield their powers.

Eito had encountered a Stage 4 profound beast during his tumultuous journey back to Kokoro Island. Although he only saw it for a fleeting moment, Eito was convinced that the beast's transformation would be enough to defeat his mother, potentially the strongest person in Kurenai Village.

Initially, he had reserved the transformation for the faction leaders, but Tsukino's relentless nuisance forced his hand.

A thunderous roar escaped Eito's mouth as he withstood Tsukino's punches. He began to levitate, his body undergoing a transformation that left Tsukino's eyes wide with terror.