326 Ice Cream

326 Ice Cream is an ice cream parlor that is featured in Toaru Majutsu no Index. The establishment sells a variety of ice cream flavors and seems to be well-funded enough to afford billboard space for their advertisments.

Deep Blood Arc
During the Deep Blood Arc, Index sees an advertisement for the store's products on a billboard after asking Touma what he could've bought with 3,600 yen instead of a reference book. After noticing her gaze on the billboard, Touma immediately tells her that no normal person would buy 3,600 yen worth of ice cream. This leads to an argument after Touma thought that she wanted to eat ice cream during a hot summer day, even though she didn't event that she was hot or was hungry.

The store is later visited personally by Index and Touma as a way to apologize to her, after Aogami Piasu insulted Index's body as a girl and with Touma accidentally insulting her more with his comments. When they arrived they discover that the store has been closed for renovation, which irritated Index and forced Touma to go to Macronall Hamburger as an alternative.