Toaru Kagaku no Railgun 4th Season

Mikoto Misaka's life in Academy City continues between school, friends, and the hidden side of the city that created her powers. Being one of only seven Level 5 espers has never made life simpler. Whenever calm seems to return, experiments and organizations operating behind official institutions expose another layer of secrets.

Alongside Kuroko, Uiharu, and Saten, Mikoto once again refuses to look away when other people are placed in danger. Between science that promises to develop human potential and power that can be turned against the people it studies, her answer remains the same: she will not let the city reduce those she cares about to data in somebody else's experiment.