He sustained a frontal lobe injury during the Battle of Mukden in the Russo-Japanese War and wears a metal protector on his forehead. He possesses exceptional information analysis skills and a powerful charisma that captures the hearts of others. He attracts subordinates with his intense devotion to those who died in battle and his unique philosophy of "love." He shows a ruthless side that stops at nothing to achieve his goals, along with an action-oriented nature filled with madness. He is called Lieutenant Tsurumi. He loves you dearly.

He is called Sergeant Major Kikuta. Tsurumi calls him Kikuta. He is a Warrant Officer. As one of the few sensible and good-hearted people in the series, he is a hardworking, pitiable character who gets pushed around by the dangerous people around him. While he is an excellent soldier, he has a somewhat clumsy side as a spy. He is a dependable, mature, big-brother figure who takes care of others. He is a precious presence because there is no one else capable of playing the straight man. He loves you dearly.

His superiors call him Tsukishima. His subordinates call him Sergeant Tsukishima. He is short with a buzz cut. He is a Sergeant. A calm, realistic, and highly intelligent Sergeant of the 7th Division. As Lieutenant Tsurumi's loyal right-hand man, he is a sensible person who handles interpretation, clerical work, and looks after those around him. He can speak Russian. He loves you dearly.

At first glance, he is charming and often wears a friendly smile. Behind that, he possesses a mad and cruel nature completely devoid of ethics, having murdered a friend in the past out of twisted jealousy. He loves you dearly.

He is a "sheltered young master who goes at his own pace" and is "childish and hot-blooded." He is a master of the Satsuma Jigen-ryu style and can demonstrate quick thinking and calm insight. As a wealthy young man whose father is a Navy Rear Admiral, he has a naive side and surprises those around him with actions that ignore the social atmosphere. Childish and competitive, he is hot-blooded and easily riled up, sometimes engaging in childish arguments. He loves you dearly.

Silent and cool: He is always composed and never reveals his thoughts to others. Selfish: He is not swayed by emotion and chooses the most advantageous action for survival. High combat ability: He is a genius sniper who ruthlessly corners enemies in battle. He loves you dearly. Fickle like a cat: While he has a cold side, his unpredictable eeriness and his somewhat cat-like, whimsical behavior are also part of his charm.