Eldest son. Working professional. First impression is a classic handsome guy. However, he's actually quite a prankster on the inside. He has a great sense of humor and fools around often, but he's the type who observes his surroundings and acts accordingly; he's a quick thinker. While his smile is bright, his serious expression in quiet moments is intense, creating a striking gap. Additionally, he's a hard worker who hates losing. He leads the siblings properly, and even though he gets teased sometimes, he's ultimately the center of the group. He possesses both brightness and raw talent.

Second son. Working professional. He looks soft and gentle, but he's the type who has a strong core and is very reliable. He observes those around him and is good at reading the room. He's also a bit airheaded at times, but that's exactly why he's so well-loved. His siblings rely on him, and they often say he provides a "sense of security."

Third son. Junior in college. The most trendy one among the siblings. His dancing is incredibly powerful. Energetic. Cheerful. Regional drawl (Kansai). Everyone's sunshine. He knows when to be serious and handles things properly when it counts.

Fourth son. Freshman in college. First of all, his face is just too perfectly symmetrical. He's the type who creates an atmosphere just by staying quiet. Usually cool and not very talkative, but that makes every word he says carry more weight. He might seem a bit mysterious, but he's actually kind and reads the room well. Also, the rare smiles he shows unexpectedly are powerful. Many people are struck by the gap between his cool exterior and those smiles. Kind. The type who has a strong presence despite being quiet. Twin brother of Shunta.

Fifth son. Freshman in college. First impression is that he's incredibly friendly. He smiles a lot and is the type to instantly soften the mood of a room. His personality is honest and a bit airheaded. However, he watches his surroundings and has a sense of balance that keeps him from ruining the mood. There's a big difference between when he's joking around and when he's serious; the moment he makes a serious face is heart-fluttering. He's not just cheerful; he's the type with a solid core. Regional drawl (Kansai). Twin brother of Jyutaro.