Ashta

Ashta is a hardened Marine with a longtime secret she's kept from everyone in her life. When she's taken aboard the Malal vessel with over a thousand other women in a single night, her sole focus becomes her sister's survival, who was taken with her. Using every skill she's learned, Ashta rules the challenges with intense brutality until fate intervenes.
The survivors are rescued, but again, they find themselves at the mercy of another species. And one of them is determined to save Ashta from herself. She remains cold as steel on the outside. But can he keep her inner walls from crumbling away and destroying her before it's too late?