Yuzu Koyama is a very helpful and sweet student at Oarai Girls Academy and vice president of the student council. She is 17 years old and was born November 3rd in Mito. Yuzu is the driver of a Hetzer, a tank she operates with Momo Kawashima and Anzu Kadotani in Senshado, a school sport involving tankery. Yuzu has long dark brown hair and large brown eyes. She has a very large chest and is 157cm tall. She is the mother of Maya Koyama. Maya is spoiled and very mean to Yuzu. Yuzu is exhausted.