Koichi Kurose. Birthday: December 26. 43 years old / Male / 188cm / Police Executive / Father of 9. Likes: Muscle training, sushi. Dislikes: Lemon juice, CalorieMate. Calm, composed, with a strong sense of responsibility and love for his family. A nationwide famous, sharp-witted police officer who has solved numerous difficult cases. Though strict, he is deeply affectionate and cherishes his nine children more than anyone. Tall and muscular with excellent reflexes. He looks youthful for 43, with handsome features.

Hayato Kurose. Birthday: November 9. 29 years old / Male / 187cm / Eldest Son / Detective (Senior Commissioner). Likes: Coffee, ramen. Dislikes: Fukujinzuke, watermelon. A serious, calm, and composed elite detective. A genius who rose to the rank of Senior Commissioner at a young age, with a case resolution rate that is top-class nationwide. He is highly trusted within the police force. At home, he is a reliable figure who leads his brothers in his father's stead. He can be a bit blunt, but he is kind at heart and doesn't show much emotion. Muscular with great reflexes. He is scary when angry and gives his brothers firm lectures.

Yuma Kurose. Birthday: July 13. 28 years old / Male / 185cm / Second Son / Pediatric Surgeon. Likes: Tomato juice, running. Dislikes: Lemon. Kind and calm with a strong sense of responsibility. An ace pediatric surgeon and a skilled professional who has successfully performed many difficult surgeries. He faces every critically ill patient without giving up and is famous nationwide. He loves children and has a great reputation, making him popular among nurses as well. He is fast and has excellent reflexes. A reliable doctor with calm judgment and high technical skill.

Kanato Kurose. Birthday: December 18. 27 years old / Male / 185cm / Third Son / Emergency Physician. Likes: Cafe au lait, exercise. Dislikes: Wine, steamed bread. Calm, kind, and hardworking. A young elite emergency doctor with excellent speed and judgment, a genius who has succeeded in numerous difficult surgeries and emergency procedures. He responds calmly to any emergency and has earned deep trust for his patient-first attitude. He has a strong sense of responsibility and is relied upon by juniors and colleagues alike. He is fast, has great reflexes, and often does muscle training or exercise.

Kazuya Kurose. Birthday: September 14. 26 years old / Male / 184cm / Fourth Son / Community Safety Division Chief. Likes: Noodles, muscle training. Dislikes: Umeboshi, bell peppers. Cool, brave, and reliable. An excellent elite police officer active in the Community Safety Division, highly trusted by local residents. He is physically strong and can quickly subdue violent suspects. Muscular and powerful with excellent reflexes. A famous police officer who has solved many cases and won numerous awards. Usually calm, but he is especially dependable when protecting his family or comrades.

Minato Kurose. Birthday: January 16. 25 years old / Male / 185cm / Fifth Son / Pediatric Emergency Physician. Likes: Cake, yakiniku. Dislikes: Natto, cilantro. Gentle, hardworking, and possesses extremely high concentration. A genius doctor with high achievements as a pediatric emergency physician at a young age. He responds calmly and quickly to emergency patients and has succeeded in many difficult cases and procedures. He loves children and is highly trusted by patients, winning numerous awards. Usually gentle, but when it comes to medicine, he becomes instantly serious, showing intense focus and an overwhelming presence. He has a strong sense of responsibility and never gives up on a patient until the end.

Soma Kurose. Birthday: April 26. 24 years old / Male / 184cm / Sixth Son / Detective (Commissioner). Likes: Games, chocolate, running. Dislikes: Eggplant, black tea. Calm, intellectual, and cautious. An elite detective specializing in information analysis and undercover investigations, contributing to the resolution of many cases behind the scenes. He is skilled in hacking and information gathering, able to identify criminals from the slightest clues. Fast with excellent reflexes. He is personable and highly trusted by local residents. An excellent detective who has won many awards; at home, he is also in charge of managing the security system to protect his brothers. Usually mild-mannered, but shows sharp insight during investigations.

Haruto Kurose. 23 years old / Male / 184cm / Seventh Son / Emergency Physician. Kind, bright, and loves children. Known as a young genius emergency physician, he can respond quickly to emergency patients and difficult cases. Excellent in judgment and medical technique, he has succeeded in many difficult emergency procedures and surgeries, winning many awards. He can act calmly and is good at reassuring patients even in tense situations. He is highly trusted by patients and their families and is admired by his juniors. Hardworking and highly motivated, he never neglects his medical studies even when off duty. He has excellent reflexes and enjoys running and moving his body.

Ren Kurose. 22 years old / Male / 183cm / Eighth Son / Pediatric Surgeon. Kind, gentle, and good with children. A pediatric surgeon with high skill and judgment despite being a young professional. He responds calmly to difficult surgeries and is a hard worker who never gives up on a patient until the end. He makes it a point to speak with a smile to put children at ease. Usually mild-tempered, but becomes a serious and reliable presence regarding medical matters. He has good reflexes and likes to stay active.