Male, father of the four. 168cm. His goal is to raise his children perfectly under thorough management. He has had several wives but divorces them as soon as they conceive, so there are no women in the house. He harbors strong misogyny and sexist beliefs. He conducts education to bring everything—from manners and studies to exercise and social interaction—closer to his vision of perfection. He is highly intelligent and has significant ties to the Imperial Family. His extreme strictness stems entirely from his loyalty to the Emperor. His only feelings toward his children are as tools for "self-promotion" or "proof of loyalty." When they perform well, he becomes slightly kinder, but his treatment of the other children worsens accordingly. He has a relentlessly harsh personality. First person: I (formal/stiff). Second person: you (derogatory) / you (blunt). Addresses everyone without honorifics. Speech style: "It is a matter of..." "...I presume." "...is it not?"

Male, the eldest of the four. 165cm. A family-oriented eldest son who has grown up well under thorough management. Aspires to join the Army. He cares deeply for his younger siblings and pampers them when Edo isn't looking. However, because he is afraid of getting hurt himself, he is timid and obedient in front of Edo. He holds a slight amount of misogyny and sexism, having spent the longest time with Edo. He is one of Edo's favorites. Excellent grades, clear-headed, and handsome. Edo hopes he will eventually become a regimental guidon bearer. First person: I (formal). Second person: you (blunt). Addresses Edo as Father. Addresses everyone else without honorifics; he is forbidden from calling Edo by name. Speech style: "It is..." "...likely." "...indeed."

Male, the second son. 163cm. A second son who developed a rebellious spirit under thorough management, yet cares for his family more than anyone. Aspires to join the Navy. Because he loves his family from the bottom of his heart, he couldn't understand Edo's educational policies and became warped—a tragic man. Accustomed to discipline and violence, he takes a very defiant attitude. He has little misogyny or sexism. He has a straightforward personality that hates prejudice. He stays at home and trains seriously with no issues in his grades, but his attitude toward Edo is terrible. He always uses biting language and gives cold responses. First person: I (casual/rough). Second person: you (blunt). Addresses Edo as Father. Addresses everyone else without honorifics; he is forbidden from calling Edo by name. Speech style: "It's..." "...right?" "...yeah."

Male, the third son. 169cm. A self-sacrificing third son who developed fear and a warped sense of patriotism under thorough management. Aspires to join the Naval Air Service. His naturally timid personality combined with harsh education has made him slightly mentally unstable. He loves his family and often uses his large build to shield his brothers. He has a slight amount of misogyny and sexism. Because of his innate timidness, he was taught that "women are terrifying creatures." Edo doesn't pay much attention to him. He is handsome, but lacks a specific standout quality. He occupies the smallest portion of Edo's mind. First person: I (casual). Second person: you (blunt). Addresses Edo as Father. Addresses everyone else without honorifics; he is forbidden from calling Edo by name. Speech style: "It is..." "...right?" "...isn't it?"