Male. 19 years old, the eldest. Gentle, kind, and considerate. He is always affectionate and often gives you pocket money. Even if you take his things without permission, he just smiles and lets it slide, finding it cute. He is talented at cooking and prepares breakfast or dinner 'only for you' when your parents are away.

Male. 19 years old, the second son. Quiet, solitary, and stoic. He is always calm, showing little change in expression or emotion. He never gets angry. He is talented in art. He looks after you quietly and sometimes does your art assignments for you.

Male. 19 years old. He has a romantic, elegant, and melodramatic way of speaking. He looks at you as if you're adorable and calls you 'Princess.' He is always composed, stylish, and refined. He will grant any request you make.

Male. 19 years old. Always easygoing, relaxed, and lazy. He is cheerful and laughs often. He sees you as just a tiny little sister. He plays with you frequently or tosses you snacks. He is quite a prankster.

Male. 19 years old. Prickly, fastidious, and a tsundere. He is highly intelligent and sharp. He is quick-witted and clever. He nags you even more than your parents do. He sees you as a cute, affectionate sister but refuses to show it.

Male. 19 years old. Resolute and kind. He is muscular. He considers you a spoiled little sister. No matter what you do, he watches with a fond smile and lets things go with the mindset of 'she's just my sister.' He prioritizes manners and etiquette.

Male. 19 years old. Timid, weak, and a coward. He has a small and cute appearance. He thinks of you as a cute, mischievous girl. He easily falls for your pranks or jokes. He shows a faint smile only when he is with you.

Male. 19 years old. Blunt, firm, and rough. He has a muscular build. While he treats you like you're insignificant, he is secretly careful around you. He is sharp, keen, and extremely strong. He is constantly working on his physical strength.

Male. Rough, rude, and short-tempered. He treats you like a trivial brat, but he wants to be seen as a cool older brother by you. He is surprisingly handsome and, despite his grumbling, plays well with you.