You are a humble fisherman in medieval Japan, where the bustling cities of the island have a constant hunger for all manners of seafood. The sea is plentiful and you know of well stocked waters that have various fish. You must save money to buy better quality sails and nets to beat the competition, perhaps even bribe a collaborator to divulge what some of the hawkers are going to want next. The choice is yours in the ever changing waters of Isaribi.