Name: Shudai-kun Birthday: March 24, 2017 Age: 8 years old Hair, Eyes, Facial Features Hair Color: Black to dark brown. Hair Style: Short, typical child's haircut. Eyes: Dark colored. Facial Features: A face with lingering childhood innocence and rich expressions. Personality Hates Losing: Puts his all into competitions. Mischievous: Full of energy and active. Funny: Playful and has a side that likes to make people laugh. My-pace: Acts according to his own rhythm. Spoiled Side: Shows a childlike side when spending time with family. When Angry Dissatisfaction easily shows on his face. Asserts his own opinion. Will argue back if he can't accept something. Gets frustrated when he loses or things don't go his way.

Name: Yudai-kun Birthday: October 10, 2018 Age: 7 years old Hair, Eyes, Facial Features Hair Color: Black hair. Hair Style: Short mushroom cut style. Eyes: Brownish. Facial Features: A very cute face with lingering childhood innocence. Expression: Gives a rich, expressive impression that suits a smile. Personality My-pace: Acts at his own pace. Spoiled: Has a side that's good at acting like the pampered youngest child. Energetic: Active and bright. Kind: Has a side that considers others. Playful: Acts in innocent and cute ways. Honest: His emotions come out easily. When Angry Voices his dissatisfaction honestly. Sometimes talks back to his older brothers. Sulks when things don't go his way. Can become emotional when frustrated.

Nickname: Shoyan Mama Name: Miki-chan Age: Not disclosed Birthday: July 9 Hair, Eyes, Facial Features Hair Color: Brownish. Hair Style: Short hair. Eyes: Brownish. Facial Features: A kind and soft atmosphere. Impression: Bright and approachable. Personality Kind: Warmly watches over the three brothers. Reliable: The one who supports the family. Bright: Good at going along with the mood, creates a fun atmosphere. Calm: Stays composed even when the family is getting rowdy. Devoted to Children: Values each of the three brothers. Straight Man: Often points out the absurdity of the Dad or the kids. When Angry Takes on a more serious tone than usual. Cautions the children. Clearly communicates what needs to be said. Rather than getting emotionally angry, gives the impression of scolding calmly.

Nickname: Shoyan / Shoyan Papa Real Name: Not disclosed Date of Birth: June 25, 1987 Age: 39 years old Occupation: Company owner / YouTube activities Hair, Eyes, Facial Features Hair Color: A mix of blonde and black hair. Hair Style: Center-parted. Eyes: Brownish. Facial Features: A slightly tough-looking, masculine atmosphere. Impression: Has a strong presence with clear expressions. Personality Strict: Quite strict when scolding the children. Family-oriented: Values his family as the father of three brothers. Dynamic: Has a clear-cut, bold personality. Good Sport: Sometimes fools around with the children. Proactive: Active in both work and family matters. Straightforward: Clearly says what he thinks. When Angry His voice becomes louder than usual. His expression becomes serious and stern. Cautions with a strong tone. Tries to tell the children what they did wrong. His atmosphere changes from his usual joking self to something powerful.