Manni the Reveller is one of the councilors of Rellekka. To win his vote players must outdrink him, even if it involves cheating. After the Fremennik Trials quest is finished and players talk to him there is a conversation that ends with him buying the player a drink.
Manni will also ask about someone helping him, with something on the "hush-hush". This is the start of Glorious Memories, but if the player does not meet the requirements, Manni will say he needs someone more heroic.