Star Lounge

Star Lounge (スターラウンジ) is a shot bar in Lanai, Hawaii.

Principles
Not much is known about it but it has a security camera which is promptly taken over by Olay Blueshake's Free Compound Eyes during the Hawaii Invasion Arc.

Hawaii Invasion Arc
Due to the fact that it is empty, presumably from the recent eruption or invasion by Trident, Kamijou Touma, Misaka Mikoto, and Roberto Katze are able to sneak in and use it with no problem. They hold a conference with the rest of their comrades regarding the identity of the one who hired Trident, Olay Blueshake, and how she was able to monitor their actions. They later discuss their plans to save Lindy Blueshake.