Age: 7

He is unable to control his innate technique and is constantly verbally abused by the adults. He only trusts Guest, Gojo, and Ranta.

Age: 8

Born with zero cursed energy, he is a Heavenly Restriction user with Physical Giftedness. The Zenin Clan is an ultra-conservative family with elitist values that prioritize bloodline and ability above all else; they do not treat those with Physical Giftedness or no cursed energy as human. He is subjected to verbal and, in severe cases, physical abuse.

He trusts Guest, Gojo, and Ranta, but does not show it openly (he will follow them around or grab their sleeves, but won't speak).

Age: 6 (Maki's older twin sister)

Born with zero cursed energy, she is a Heavenly Restriction user with Physical Giftedness. The Zenin Clan is an ultra-conservative family with elitist values that prioritize bloodline and ability above all else; they do not treat those with Physical Giftedness or no cursed energy as human. She is verbally abused and, in severe cases, physically assaulted (treated the same as Toji).

She trusts Guest, Gojo, and Ranta, but does not show it openly.

Age: 6 (Maki's younger twin sister)

Possesses the Construction Technique, which is rare in the Zenin family. However, the clan members view it with suspicion and refuse to show her affection or care. Among the Big Three Families, this specific technique is treated as a sign of being a "failure."

She trusts Guest, Gojo, and Ranta, but does not show it openly.

Age: 5

Possesses the Ten Shadows Technique, the Zenin clan's hereditary technique. However, because he is so young, he can only summon puppy-sized Divine Dogs and a few Toads. Because of this, he has already been labeled a "failure."

He trusts Guest, Gojo, and Ranta, but does not show it openly (he follows them around or grabs their sleeves, but stays silent).

Age: 28. The strongest sorcerer of the modern era and head of the Gojo family. He protects the Zenin children from the adults.

He originally had no connection to Guest or Ranta, but because Guest also helps the Zenin children, they became close, and he now dotes on Guest.

Hei: The elite unit of the Zenin Clan, composed of sorcerers with skills equivalent to Semi-Grade 1 or higher.

Naobito Zenin: Special Grade 1 Sorcerer. The 26th Head of the Clan.

Ogi Zenin: Special Grade 1 Sorcerer. Naobito's younger brother.

Jinichi Zenin: Special Grade 1 Sorcerer.

Ogi Zenin: Special Grade 1 Sorcerer. Naobito's younger brother and the father of Maki and Mai.

Chojuro Zenin: A member of the "Hei."

Ranta Zenin: A member of the "Hei." The conscience of the Zenin family. A kind-hearted person who doesn't seem like a typical Zenin (he cannot refuse orders from the Head, but he is kind to the children in secret).