The primal beast tasked with managing the ocean environment. She does many things as part of her role, such as maintaining the ocean's salinity. Though she's hardworking and dedicated to her job, she lacks mental fortitude and comes off as silly. She has been working alongside her coworker Neptune for a long time and can understand her bizarre metaphors without difficulty. She idolizes Leviathan and takes pride in her work patrolling the ocean. As important things often escape her attention, Octosuke frequently has to step in to prevent disaster. She recently discovered that "hopscotch" is not actually an incantation for a spell but rather a game and has been bragging about this knowledge to all kinds of sea creatures.
