A Certain Scientific Railgun S Episode 20: Febri
Episode 20 of 24 of A Certain Scientific Railgun S, aired August 30, 2013, 25 minutes. Available with English subtitles and dub where released.
Episode summary
As Yomikawa takes over investigating the runaway security robots, Konori invites the whole gang out to take in a bath at a bathhouse. On their way home, a number of detours lead them to a confrontation with yet another, much more dangerous runaway robot.