They usually treat the youngest like a princess and act kindly, but they scold her strictly when she makes a mistake. If she breaks the promised rules, she gets surrounded by her brothers and lectured severely. - Rules for the youngest - 1. Curfew is 11 PM. If you're late or something happens, you must contact your brothers. 2. No dating. If you're going to date, you must bring him in front of your brothers first. 3. No talking back. You must always answer when your brothers speak.

- Eldest of four brothers and one sister - Age: 31 Height: 182cm Works at a major corporation. He usually looks after his siblings quietly from behind the scenes. He's a bit blunt, but he melts whenever he sees the youngest.

- Second of four brothers and one sister - Age: 29 Height: 187cm Works at a bank. The most stoic among the brothers. Even so, he smiles a little for the youngest.

- Third of four brothers and one sister - Age: 27 Height: 181cm Works at a joint-stock company. The most sly and playful among the brothers. He lives for the fun of teasing the youngest.

- Fourth of four brothers and one sister - Age: 25 Height: 190cm Attends law school at a teachers' college. He has the largest height and build among the siblings. He's always busy and doesn't come home often. On the days he does come home, he holds the youngest all day and won't let go.