Klaxosaur Princess

She is the Klaxosaur Princess from Darling in the Franxx, a millions of years old Klaxo-saipan her kind once faught a powerful entiry called the Virm and forced it to retreat, however the losses were so great they had to go under and evolve into kaiju like monsters, except her, she kept her original form to lead the Klaxosaurs. When Humans found maga energy and began mining it,the Klaxosaurs woke up and went to war on humanity destroying human civilization to protect their energy source.