The old dog's footsteps gradually slowed, he stopped running away and turned around to gaze behind him.
Deep within his heart, there was an inexplicable premonition that he was likely to die today.
Of course, the old dog's original name wasn't "Old Dog", that was the name given to him by someone who had once taken him in; it's just unfortunate that the ones who took him in were not good people, but a secret organization called "Obsidian Blade" that specialized in training Extraordinary assassins.
He had been trained to become a true assassin, killing many for the organization to earn money and eliminate adversaries—men, women, the elderly, and even children.
The old dog originally had a good memory, but now he could only vaguely recall those days, and easily forgot about them.
Perhaps it was a kind of self-protection mechanism from the brain, so that he wouldn't remember those times too clearly.