Ep. 20: Yomikawa Investigates Robots While Konori Takes Gang to Bathhouse
Aired on August 30, 2013Filler

Yomikawa assumes responsibility for investigating runaway security robots. Meanwhile, Konori invites the entire group to visit a bathhouse. During their journey home, several detours occur. These deviations ultimately result in a confrontation with another runaway robot. This specific machine is described as significantly more dangerous than previous encounters. The group faces this new threat directly. The narrative focuses on the contrast between the leisure activity and the sudden danger. The investigation continues alongside the personal interactions of the characters. The episode highlights the escalating risks posed by the malfunctioning machines.
Episodes
- Ep. 16 · Misaka defends clone #10032 as a sister and seeks to thank Kamijou
- Ep. 17 · Girls plan a study session and potluck stew party at Saten's apartment before summer ends.
- Ep. 18 · Edasaki prepares for discharge and moves in with Haruue while a new city movement begins.
- Ep. 19 · Febri bonds with Saten while Misaka feels slighted by her cold demeanor.
- Ep. 20 · Yomikawa Investigates Robots While Konori Takes Gang to Bathhouse
- Ep. 21 · Misaka seeks the creator of synthetic Febri to repair her after investigation stalls.
- Ep. 22 · Therestina gives Misaka clues to find Febrie's secret group behind STUDY Corporation
- Ep. 23 · Aritomi explains STUDY's project to Misaka, who learns of Nunotaba's plight and the Reach Assembly plans.
- Ep. 24 · Shirai, Konori, Kongou, Uiharu, Saten, Misaka, Febrie, and Aritomi face powered suits and final surprises.