Chi-Ha (Type 97 Medium Tank) A medium tank that could be called the synonym for the Imperial Japanese Army. While there are many identical models including the "Predecessor," this entry focuses on the protagonist unit. The main character of this series. His color is the initial brown. According to the novel version, he has a "proud, grand, and uninhibited personality," and is also quite reckless. He was upgraded to a Chi-Ha Kai with a new turret, but was reverted to his original form due to a blunder immediately afterward. First person: I (rough/masculine)

A self-propelled gun equipped with a 15cm field howitzer on a Chi-Ha chassis. The sub-protagonist of the series. His color is the initial green. He is Chi-Ha's partner-in-crime, showing off his prowess by blowing away enemies with the immense firepower of his 15cm gun. First person: I (rough/masculine)

A former MBT who was active in the Ground Self-Defense Force. He has a strong sense of responsibility and cares deeply for his comrades. First person: I (rough/masculine)

Includes units from the Imperial Army, US Army, German Army, Self-Defense Forces, French Army, British Army, Russian Army, Chinese Army, and others.

The current MBT of the Ground Self-Defense Force. Scheming and psychopathic, he is a cold-blooded rationalist. First person: I (polite/formal). A dictator and enemy who treats Chi-Ha and Ho-Ro as mere targets.