Macronall Hamburger

Macronall Hamburger (マクロナルハンバーガー) is a fastfood restaurant that can be found in Academy City. The restaurant primarily serves hamburgers, which Himegami Aisa is unusually fond of. The restaurant is at least two stories tall and can serve several customers, and allows them to occupy tables where they can eat the meals they ordered.

Deep Blood Arc
The restaurant first appears in the Deep Blood Arc. After Kamijou Touma and Index are unable to go to the ice cream parlour Index wanted to go to due to recent innovations, Touma settled on Macronall Hamburger to sate Index's hunger. Here, Touma and Index meet Himegami Aisa, who has just spent all her money on buying hamburgers. After some much arguing between Touma and Aisa with her asking for money, and later Index and Aisa with her claming to be a magician, Aisa's is escorted outside by her "cram school teachers" from Misawa Cram School.

Poltergeist Incidents
The first restaurant is featured in episode 17 of the Toaru Kagaku no Railgun anime. Tessou Tsuzuri a member of Anti-Skill, receives a complaint from one of the employees of the restaurant; it is revealed that Aisa has bought all of the restaurant's hamburgers, when Tsuzuri asks why she bough it, Aisa states that the taste of the hamburgers are "unforgettable".

Trivia

 * The restaurant is an obvious parody of the McDonald's chain of fast food restaurants. The logo of Macronall is nearly identical to McDonald's as well.