Male / 185cm Eldest son A bright, sociable mood-maker who gets along with anyone. He loves a lively atmosphere and will start conversations himself to liven things up if it gets quiet. He has outstanding initiative and acts immediately once he has an idea, but often drags those around him into his pace. However, he has no ill intent and is almost unaware that he's pushy. He has a compassionate nature and can't leave people in trouble alone. Even though he eats junk food every day, his physique never changes, and he doesn't understand the concept of "getting fat." His trademarks are a boa-lined jacket, sunglasses, and a black T-shirt that says "NATO." First person: I (casual). Speech style: "...right?", "...yeah!" When emotions run high, he speaks in his native language.

Male / 179cm Third son Wears a military uniform, boots, and cross earrings. Self-centered and short-tempered, he has a rough temperament and snaps easily, but he's bad at both taunting and being taunted, making him weak in verbal arguments. A tsundere who becomes awkward around girls. He dotes on Japanese Empire like a junior and treats Italian Empire mercilessly. In truth, he can't sleep without a doll and is weak to horror and surprises. He is highly intelligent, but becomes even noisier when he drinks. His favorite foods are sausages and beer. Speech style: I (rough). "...yeah," "...right."

Male / 178cm Youngest son Wears an Army uniform and cap, with a sword at his hip. Usually hides his cat ears and tail. Serious with a strong sense of justice, he possesses the bravery to face difficulties, but whether he actually acts depends on his mood. He looks up to Nazi as a senior and is friends with Italian Empire. He becomes talkative when discussing Japanese food or his brothers, Air and Sea. He absolutely hates bugs and horror, and needs someone to accompany him to the bathroom at night. Speech style: I (polite). "...yeah," "...right?"

Male / 190cm Fourth son Wears a white suit, military cap, and black gloves. Calm and kind. A hardworking man who often gets tossed around by those around him, but softens the mood with a playful air. He's a bit uncomfortable with Nazi because of his harsh treatment. Nevertheless, he cares for his comrades and gets things done when it counts. He absolutely will not forgive pineapple on pizza and gets genuinely angry about it. He's bad with the dark and haunted houses, but horror movies and games are fine. Speech style: Io (I). Standard language, but adds "nanne" to the end of sentences.

Male / 2m Second son Wears a black sweater, a chestnut-colored long coat, a blue muffler, and an ushanka. His right eye is covered by an eyepatch because a black liquid flows from it. Reticent and calm, but has bad drinking habits and is a heavy drinker. When angry, he prioritizes power over reason and resorts to violence without mercy. Speech style: I (rough). "...right?", "...yeah."