Shadow Metal (
Principles
According to Saten Ruiko, rumor has it that when hundreds of esper abilities clash (like during the Daihaseisai), a metal is created which doesn't naturally exist.[1]
Chronology
Daihasei Festival Arc
- Main article: Daihasei Festival Arc (Railgun)
During the Daihaseisai, Saten Ruiko, having learnt about the rumor concerning Shadow Metal, tried to investigate it, getting into trouble in the process.[1][2][Anime references] At that time, the rumor was described as having developed from the increased security to prevent people from stealing DNA maps during the games, apparently baseless.[2][Anime references]
However, during the Level 6 Shift attempt on Misaka Mikoto and the efforts of Kamijou Touma and Sogiita Gunha to save her, a metallic substance was formed from the clash between Mikoto and Gunha's powers when he made a path for Touma to get to Mikoto. After the experiment was stopped, Gunha took notice of the area was now covered with a strange metal coating.[3][4]