Tree Diagram

The best super-computer in the world, according to the best renowned scientists in Academy City. This computer was loaded into the satellite, Orihime 1, to monitor many aspects of the city. This computer was used for the 'Sisters' Project, to calculate a way to achieve Level 6. By taking the best level 5 (Accelerator) it was calculated that if about 128 Level 5 psychics were defeated by Accelerator, he would achieve Level 6. However, Academy City only had six other level 5 psychics, so by using 20000 Level 3 clones of Mikoto Misaka, they expected the same result. During Touma's fight with Index (while being possessed by Johann's Pen), Index accidentally shoots a Dragon Breath's attack to space and destroys the Orihime 1 satellite, destroying Tree Diagram permanently.