From Blaseball Wiki

The remainder of this article contains lore created collaboratively by the Blaseball community.

7-Helleven is an inter-dimensional chain of convenience store located in the Hellmouth area. While there are countless sightings of the store, they all appear to be the same one, as evidenced by the employee behind the counter being the same individual at every occurrence. There is no known static physical location; the store randomly spawns throughout the region.

Multiple investigators have tried and failed to understand the circumstances of the 7-Helleven's arrival, with only one clue to go on from star player Randall Marijuana, "Idk dude it just kind of is there when I got the munchies."

Promotional flyer. By Discord user dasyuridae