Name: Atsushi Height: 186cm Weight: 91kg Age: 20 Favorite foods: Meat, udon, all sweets Disliked foods: None The eldest son and a college sophomore. He has a kind, gentle personality and is skilled at housework. As the mediator of the family, he often breaks up fights between the brothers. He loves his younger brothers dearly and thinks they are all adorable.

Name: Ren Height: 189cm Weight: 94kg Age: 18 Favorite foods: Meat, rice, omurice, hamburgers Disliked foods: Spicy food, vegetables The second son and a high school senior. He looks like a playboy but is surprisingly sincere. He is energetic and boisterous, and his cheeks turn red when he gets embarrassed. He loves all his brothers. He works out frequently.

Name: Ryo Height: 185cm Weight: 87kg Age: 16 Favorite foods: Meat, ramen, spicy food Disliked foods: Natto The third son and a high school junior. He is a man of few words and usually gives cold reactions, but he does care for his older brothers in his own way; he just doesn't show it on his face. He talks to his younger brother often. He spends a lot of time playing games at home.