To Uchiha Setsuna, Ken represented the Uchiha Clan's future hope, so he would not allow anyone to interfere with the boy's growth. Unfortunately, Tetsuya Uchiha was an obstacle in Ken's path. As his father, he belonged to the faction that favored closer ties with Konoha, which made him a poor role model for Ken. Though they appeared to be close friends, Tetsuya Uchiha would never have imagined that Uchiha Setsuna had been thinking all along about how to get rid of him.
With the Joint Chunin Exams bringing large numbers of outsiders into Konoha Ninja Village, Uchiha Setsuna knew that the opportunity he had been waiting for had finally arrived. He used his Sharingan to control someone and had that person wrap his entire body in Explosive Tags, turning him into a suicide bomber. All that remained was to lead Tetsuya Uchiha into contact with him.
The result had proven everything. Tetsuya Uchiha had been caught in the explosion of the Explosive Tags at close range. With his mediocre talent, he had never stood a chance of escaping. Uchiha Setsuna could see the remains of his body. With injuries that severe, not even the Medical Department's finest experts could save him.
"Father!" Ken's anguished cry brought Uchiha Setsuna back to the present, and his gaze instinctively settled on Ken's eyes.
Ken's face was filled with disbelief. He had only come out to enjoy himself with his father. He had never imagined that their happy outing would end like this. Having witnessed his father's gruesome death right before his eyes, he could not stop his tears from flowing. Then an agonizing pain surged through him, as though his heart were about to burst. His brain seemed to swell, and something flowed into his eyes. They felt as though they were burning,