Ming is a large, muscular woman, she is stereotypical crab. Standing nearly eight heads high. The body that is visible is crisscrossed in scars and tattoos, some that look recent.
Ming is working on the wall for Sakurako. Who wants something strong to repel attacks. She is only too happy to help as it means an opportunity to test new building methods while not besieged by hordes of the Shadowlands.
She is also there as representative of the Crab clan to get more medicine shipped down south.
Ming has stressed that if she could leave, she would implying that something other than the Governess is keeping her there.