Aoi's world crumbled around the pale expanse that was the room around him, he had no reason to live other than Izumi. What was there in his life anyway? What hopes were there for the future? Did he want to settle down and have a nice loving family? Was that even possible? No. Not only was he a criminal, but he was delusional and damaged. He heard a voice in his head speak, "So, what's your plan Aoi...?"
What was his plan? His sister was most likely dead, and even if she wasn't the journey to her aid would most likely claim his own life in the process. But that didn't matter, Aoi was already dead inside, he had been dead the moment the cold steel sliced along his wrists all those years ago... He knew it, Izumi knew it, and the gods knew it. So he had nothing to lose, the Fire Nation, however, had plenty of nice young warriors to kill. It was only fair of course, if one were to touch his sister in an bad manner, they would lose their hand or their life if Aoi's view, so her kidnapping, or possible murder and/or rape condoned the murder of every single Fire Nation warrior he saw, remorseless and cold. Now his path of self-deprivation and pity was nearing its end with a "righteous" stab at those of whom wronged him. This ideal though was under the guise of his mind, simply stated as a quest to locate his sister, with whom his subconscious knew had perished, or suffered a fate worse than that. His conscious, however, continued to hold out hope as he rose up from the disarray that was his psyche.
With the complex mental dilemma out of the way, his new goal was clear... he had to locate his sister, slaughtering each and every member of the Fire Nation, be they man, woman, or child, that were to have the misfortune of crossing his path. His demeanor was not that of an avenger, nor that of an enraged brother, but rather, his face showed the depression he had felt for years, suffering at his own behest. He stepped out into the cold hall, the sounds of flame and screaming was heard all around, it was clear through the sounds of fighting and crumbling... the Age of Fire and Blood had begun, the coexistence of fire was at its end... It was clearer than anything... Aoi moved into his own room, adjacent to Izumi's, and collected his blades, the only thing he needed for what was ahead.
His "plan" was simple, to go out into the field of battle and hack down every Fire Nation dog until he found one of seemingly high rank so that he could torture and question them. Finding injured non-Fire Nation citizens was also on the itinerary, they would have possibly seen whom was high ranked, or where they were taking prisoners, if they were taking prisoners...
He lifted his hand to his face and felt his cheek, before moving his hand quickly away from his face and looking at it, he had forgotten about the copious amount of blood and brains on it, not bothering to rub off the blood from his face, or his hand, he moved out into the hall. A bit of the building not far from him had collapsed, making it an easy escape route. He moved there and skillfully moved down the rubble, the fighting in the section of the courtyard he had appeared in seemed to have died down, but he was sure he could find more Fire nation with little to no effort. He glanced around before noticing a girl, she was Earth Kingdom, that was apparent, his heart fell through when he saw her red hair, it was not Izumi, but she still may know something.
He jogged towards her, she was leaned against a wall near the rubble, attractive in her own regard, but Aoi didn't notice, he hardly cared at that point in time. He kneeled down next to her, forgetting again about the blood on his face and arm, before speaking to the girl, not in a caring, nor a forceful tone, but one of indifference, cold and clear, "What have you seen? Have they taken prisoners? Have you seen any high ranking officers?"
The girl had obviously been through an ordeal, so being spoken to in such a manor seemed hardly constructive, but he hadn't the time, nor the spirit, to think on such terms.