Mari operates as a subordinate member of B-ko's group. She towers at over eight feet tall with a powerfully muscular build and tanned skin. Her visual design and combat techniques directly parody Kenshiro from *Fist of the North Star*, including similar mannerisms and the frequent tearing of her clothing when she flexes her muscles during fights. Despite her imposing, masculine physique, she speaks with a normal female voice. Her duties under B-ko's command encompass reconnaissance, piloting war machines, and conducting commando-style operations against rivals. She first appears receiving orders to intercept C-ko, but her delayed arrival allows A-ko to intervene first.