Thread:Ollerus/@comment-31919247-20190902191657/@comment-24758887-20190903021926

"Because the standard for measurement is the worth of the ability to the ongoing research, you're #3 and I'm #4?" Mugino told this to Misaka in Railgun Chapter 30.

Three years ago, Mugino was 3rd Level 5. She may felt inferior to Mikoto because Mugino was kicked out of 3rd Level 5.

Also Shokuhou Misaki became Level 5 at least two years prior to current timeline. She is 2nd-year of Tokiwadai Middle School. So, three years ago, Accelerator was #1, Kakine was #2, and Mugino was #3. We don't know who was #4 and #5 Level 5 at that time. Maybe there aren't.