Yuko is a very sweet and cute girl from Waffle Academy, a Belgian-based school located in Kobe, Japan. She is the main commander of her school and commands a ACG-1 (Belgian version of the French AMC-35) tank in Sensha-do, a school sport that involves safe tankery. Yuko is very sleepy and loves her dog, but she herself is also a girl with dog ears and a tail. Her hair is light brown and her eyes blue, she is short and wears a soft waffle-colored jacket and a skirt with waffle texture.