Various monsters from the Ultra franchise visit the "Monster Bar" every evening to drink away their troubles, whether they have fought a good fight against the Ultra heroes that day or if they've been beaten black and blue. The monsters all gather to refresh themselves, to gather their energy, and to come up with more sinister plans for tomorrow. Baltan is the shop manager of the "Monster Bar," his assistants are Dada and Kanegon, and his part-time worker is Pigmon. The bar's regular customers include: Red King, Eleking, Gomora, Gudon, Zetton, King Joe, and Twin Tail.
(Source: Anime News Network)
