In 1995, Tokyo was hit by the worst terrorist attack in Japanese history. A sarin attack in the Tokyo subway claimed the lives of 12 people. The perpetrators were members of Aum Shinrikyo, a doomsday cult founded and lead by Shoko Asahara. Following the attack, the world learned of just how dangerous this cult was, having hundreds of chemical weapons facilities across Japan, and some believe they may even have tested a nuclear bomb. In the end, Shoko Asahara was arrested, and what could have been a horrendous period for Japan, if not the world, never came to be.
But what if it had? What if Aum Shinrikyo had become the threat they very well could have? A threat the could very well have rivalled Al-Qeade? This is that TL. Welcome to the Reign of Aum Shinrikyo.