Julian Restaurant

Julian Restaurant is a restaurant in Academy City which serves breakfast and desserts. There are at least two known branches that can be found in the anime adaptation, one of which is notable for being the same restaurant that both Accelerator and Kamijou Touma visited on the same day.

Level Upper Arc
In the Toaru Kagaku no Railgun anime adaptation, the restaurant is seen during Misaka Mikoto's complaining to Uiharu Kazari, about Shirai Kuroko's recent lecture for her getting involved with Judgment business. However their conversation is interrupted by the arrival of Kuroko who takes Uiharu away for Judgment work. However, Uiharu forgot her Judgment armband, which gave Mikoto an opportunity to disguise herself and experience being member of Judgment firsthand.

In the manga, the restaurant used for the scene was Joseph's Coffee and Restaurant instead.

Three Stories Arc
Another restaurant is used in the Toaru Majutsu no Index anime adaptation during the Three Stories Arc. Accelerator brings Last Order with him for breakfast where he later sees Amai Ao, who immediately leaves after seeing Accelerator. Last Order later confronts Accelerator regarding his true feelings towards the Sister clones he killed for the Level 6 Shift. Accelerator immediately after Last Order's conclusion that he really didn't want to kill the clones at all, though not before seeing Last Order collapse from an apparent illness. However, Amai Ao later returns and pretends to be related to Last Order to kidnap her.

The same restaurant is later visited by Touma and Index for a meal where they are later attacked by Yamisaka Ouma, who kidnaps Index. Touma is then forced to give chase.

Much later Accelerator revisits the restaurant after being informed by Yoshikawa Kikyou of the danger Last Order poses to the world. He discovers that Amai Ao took Last Order after pretending to be related to her. He later calls Kikyou to inform her this and discovers that the traffic to and from the city has been halted due to a security breach. Accelerator is thus able to predict where Amai would be hiding. In the manga version, both scenes with Touma and Accelerator use a restaurant different from the anime version.

Toaru Majutsu no Index Movie: Miracle of Endymion
In Toaru Majutsu no Index Movie: Miracle of Endymion, Meigo Arisa and Index are in a Julian Restaurant discussing the new song Arisa wrote for the two of them to sing together just before Marie Spearhead abducts Arisa.

Trivia

 * Just like with Joseph's Coffee and Restaurant, JonaGarden Family Restaurant, and Jacob Restaurant, the restaurant appears to be a reference to the real-life Jonathan's Coffee and Restaurant chain in Japan.