Fourth-Stage Gene Lock, Open!

The Grudge world.

On an uninhabited island in the Pacific Ocean, Uchiha Gen sat cross-legged alone.

His expression was calm as he watched the waves rise and fall.

The sun rose and the moon set, yet he did not move in the slightest.

Unbeknownst to anyone, a silent transformation was taking place within Uchiha Gen's body.

The First Stage Gene Lock unlocked combat instincts.

The Second Stage Gene Lock granted control over every bodily tissue aside from the brain, greatly enhancing strength.

The Third Stage Gene Lock developed the brain's potential and increased intelligence. Once all potential had been fully developed, one could gather Essence, Qi, and Spirit to achieve Spiritual and Physical Union, opening the Fourth-Stage Gene Lock.

It awakened the power buried in the deepest reaches of the body, the power belonging to one's genes and bloodline.

At this moment, Uchiha Gen had reached that step.

To open a Gene Lock, one either had to receive external stimulation in an extremely dangerous battle and awaken an unparalleled survival instinct, or raise one's concentration to its absolute limit.

Uchiha Gen had chosen the latter method.

With the mobilization of his Micro Control ability, Uchiha Gen's Essence, Qi, and Spirit completely merged into one. His consciousness became incomparably focused, an invisible shackle shattered, and the power buried deep within his body was released.

At that moment, the instincts for slaughter and survival recorded in his cellular genes—those of ancient ancestors and all kinds of fierce beasts, born from battling heaven, earth, natural disasters, their own kind, and every conceivable danger—surged forth in full force.

This obsession with survival, this urge to destroy everything and give everything just to live, was so powerful that it could almost instantly make a person lose their reason and want only to kill every living