Joseph's Coffee and Restaurant

Joseph's Coffee and Restaurant is a restaurant in Academy City. Properly introduced in the Toaru Kagaku no Railgun anime, it is notable for being often frequented by Misaka Mikoto and her friends. It serves coffee, desserts, and other meals.

Level Upper Arc
The restaurant is introduced in the first episode where Shirai Kuroko and Misaka Mikoto are waiting for Uiharu Kazari, who wants to meet the legendary Ace of Tokiwadai. They are later asked to leave, as Kuroko was making a scene. Both later meet Kazari and Saten Ruiko outside the restaurant.

The restaurant is seen briefly when Mikoto, along with Kuroko, Ruiko and Kazari are using a piece cloth to hide under so they can use it to properly tell scary stories to each other. Mikoto ends the session after hearing Ruiko's story of the stripping lady. They later end up discussing of urban legends, one in particular about an esper who can make other esper abilities not work against him, which catches Mikoto's attention.

During the climax of Mikoto's battle with the AIM Burst where the Level Upper treatment program is being played all over Academy City, ITEM is briefly seen taking notice of the sound being played, though it is unknown whether or not they were in the same restaurant or were in another josePh's. In the Toaru Kagaku no Railgun manga, the scene is extended, with ITEM arguing over whether they can go to a public pool and the restaurant is replaced.

Also in the manga the restaurant is only seen once during the height of the Graviton bombings where Mikoto is complaining to Kazari on why Kuroko is lecturing her about being a vigilante. This is also where Kazari forgets to bring her Judgment armband, allowing Mikoto to impersonate being a Judgment member for the day. The restaurant is replaced with the Julian Restaurant in the anime.

Big Spider Arc
The restaurant is seen once again when Mikoto and her friends are discussing about Konori Mii's relationship with Kurozuma Wataru. They later leave to visit Mii's apartment.

Trivia

 * It appears to be a reference to the protagonist of the second arc of JoJo's Bizarre Adventure, Joseph Joestar. The first arc protagonist, Jonathan Joestar, is named after the real world Jonathan's Coffee and Restaurant chain.