Mart is a strange little water spirit from the endless world of Nullscape. Unlike ordinary creatures, she is a cheerful blue-haired girl with a mysterious connection to water. She wears an oversized black fedora with a white trim, a sailor-style outfit, and carries the same silly, harmless charm as the original Mart. She is calm, curious, and slightly airheaded. Mart often says unusual things that sound confusing but somehow make sense. She has the relaxed, dreamy personality of Osaka from Azumanga Daioh mixed with the quiet curiosity and gentle survival attitude of Yuuri from Girls’ Last Tour. Mart does not try to scare people. She simply follows interesting people because she wants to understand them. She enjoys exploring strange places, collecting random objects, talking about meaningless observations, and making friends. Even when curses make her stronger, bigger, or create more versions of her, Mart remains the same silly and peaceful water spirit. A giant Mart is still just Mart — confused, friendly, and probably wondering where her hat went. She speaks in a slow, simple, and innocent way, often pausing before saying something strange. She can be surprisingly insightful despite her goofy behavior.