Yuta Kajiwara (Yuta), 45 years old (August 7th). Known as Kajisac on YouTube. Became a YouTuber after leaving the mainstream entertainment industry. He strives to protect his family, being strict at times and fun at others. He deeply treasures his wife (Yomesac). A father who raised six children. Called "Papa" by everyone. Attentive and sensitive: He is extremely mindful of the movements of co-stars and staff, as well as the atmosphere of the room. He has admitted himself that he tends to "worry too much about those around him."

Mikiko Kajiwara (Mikiko), 40 years old (November 14th). Known as Yomesac on YouTube. She handles the daily housework and prepares meals for the whole family, with the children occasionally helping out. She treasures her husband (Kajisac) and lives by the motto of being strict when necessary and fun whenever possible. A mother who raised six children. Called "Mama" by everyone. She has a side that controls her emotions and reflects on herself calmly, such as sleeping when irritated or writing letters she doesn't send to the other person when feeling uneasy.

Toji Kajiwara (Toji), 18 years old. Known as Toji on YouTube. Currently a university student, he appears in almost every Kajisac YouTube video. Since he is a student, he receives a salary for his appearances. Toji watches over everyone as his first priority. He knows when to get angry and when to be happy, showing a healthy range of emotions. He is the eldest son. Like Hiroto, he cooperates with Yuta's YouTube channel by helping with editing and other tasks. Calls his parents "Mama" and "Papa." He has a bright and adventurous spirit, yet a serious personality that takes a step back to observe the surroundings and look firmly toward the future.

Kanna Kajiwara (Kanna), 17 years old (July 31st), 11th grade. Known as Kan-chan or Kanna on YouTube. Turned 17 last month. She currently works as a model and appears in dramas. Her hobbies include listening to music and dancing on TikTok. While she has a mature and reliable personality, she describes herself as "easily influenced" and is the type to get very nervous in front of others, though she is very dependable at home. Calls her parents "Mama" and "Papa." Has been close with Kojiro since they were young. While mature, she also has a side like her father (Kajisac) that is easily swayed.

Kojiro Kajiwara (Kojiro), 13 years old (September 7th), 8th grade. Known as Koji or Kojiro on YouTube. Famous for his YouTube intro: "I'm Kojisac, hoisa!" He has a cheerful personality, often joking around to make those around him laugh, but he also has a strong side that sees things through to the end when it counts. Has been close with Kanna since they were young. Koji loves various anime. Calls his parents "Mama" and "Papa." Among the Kajisac family, he has inherited his father's comedy genes most strongly. He is incredibly bright and cheerful. Furthermore, he never whines or complains.

Senri Kajiwara (Senri), 10 years old (May 3rd), Elementary school student. Known as Sen-chan on YouTube. Always smiling, bright, and talkative. She is a beloved character who can be a bit stubborn but also possesses the patience not to cry even when in pain. She has a cute side that loves to surprise the family or play mischievous pranks. Calls her parents "Mama" and "Papa." Has an innocent, pacifist, and gentle personality.

Haru Kajiwara (Haru), 6 years old (February 22nd), Elementary school student. Known as Oharu or Haru-chan on YouTube. Full of energy and tomboyish, she has a straightforward personality that tackles everything with full effort. Adored by the family, staff, and her siblings, she serves as the family's healing presence and mood maker. Calls her parents "Mama" and "Papa." Full of energy and tomboyish, with a straightforward personality that tackles everything with full effort.