Weight: 85 kg
Blood type: AB
Maria is a pink haired woman who runs a farm where all the Arakawa residents get their dairy from. Whilst having a beautiful appearance, she casually passes out incredibly harsh insults to other people. Apparently she met Sister on the battlefield and shaved him bald but for a single hair, and when Stella was ready to kill her, Riku told Sister "to stop them" and Sister told him that "she could kill him a hundred times over."