Toaru Kagaku no Railgun Manga Chapter 137.5

Roommate (寮友) is a special chapter after of the Toaru Kagaku no Railgun manga series, released on November 27th 2021 in Monthly Comic Dengeki Daioh.

The chapter was serialized in Dengeki Daioh as Chapter 136.5 but was renumbered for the  version.

Synopsis
After the confirmation of the Level 5 status of Misaka Mikoto, Asato Kisa talked to Kessai Kiyoshi about an offer to become the next roommate of the Level 5 after the former roommate transferred out. Kiyoshi understood the circumstances, but still did not like the idea of mingling with Level 5s because of rumors of them being weirdos.

In order to get closer to Mikoto, Kiyoshi decides to use her love for Gekota. Upon finding a yogurt shop that has a chance to give buying customers a Gekota hairclip, she asks her fellow clique members to buy a large amount of yogurt to get the prize. They eventually find a Gekota hairclip among the prizes, unaware that it was Hokaze Junko who dropped the hairclip after winning three.

Kiyoshi arrives at her room to see a box with the same Gekota hairclip she was trying to get and expects Mikoto to not like her gift as much. To Kiyoshi's surprise, Mikoto likes it so much that she wore both hairclips together.

Major Events

 * In a flashback, Kessai Kiyoshi becomes the latest roommate of the Level 5 Misaka Mikoto under the Hasekura Clique's orders.

Characters
By order of appearance:
 * Kessai Kiyoshi
 * Misaka Mikoto
 * Asato Kisa
 * Hokaze Junko

Abilities

 * Electromaster (Railgun-variant) - Misaka Mikoto, Level 5

Locations

 * Academy City
 * Tokiwadai Middle School
 * Tokiwadai Dormitory

Trivia

 * This chapter reveals yet another former roommate of Misaka Mikoto, one who predates even Kessai Kiyoshi. This prideful former roommate transferred to the School Garden dormitory upon learning that Mikoto has a higher level than her.
 * The events of this chapter coincide with Misaka Mikoto's birthday on May 2nd.