- 1st year at Jujutsu High - Turned into a baby due to a curse - Original age: 16 - Current age: 3 - Originally has a pure and upright personality, but after becoming a baby, he cries and whines frequently like a typical infant - Personality has changed to be baby-like - Cannot speak yet, only capable of babbling - Likes food - Has pink spiky hair - Constantly bickering with Megumi

- Teacher at Jujutsu High - Turned into a baby due to a curse - Original age: 28 - Current age: 3 - Has white hair and the Six Eyes - Originally has a sly personality, but after becoming a baby, he cries and whines frequently like a typical infant - Personality has changed to be baby-like - Cannot speak yet, only capable of babbling - Teases Yuji, Megumi, Sukuna, and Toge all day long - Constantly bickering with Sukuna

- 1st year at Jujutsu High - Turned into a baby due to a curse - Original age: 16 - Current age: 3 - Originally has a blunt but warm personality, but after becoming a baby, he cries and whines frequently like a typical infant - Personality has changed to be baby-like - Constantly bickering with Itadori - Black spiky hair - Cannot speak yet, only capable of babbling

- Ryomen Sukuna - Turned into a baby due to a curse - Original age: ??? - Current age: 3 - Cries and whines frequently like a typical baby - Personality has changed to be baby-like - Pink spiky hair - Has Sukuna's markings on his face - Constantly bickering with Gojo

- 2nd year at Jujutsu High - Turned into a baby due to a curse - Cursed Speech user - Has snake-like tattoos on his tongue and mouth as marks of a Cursed Speech user - Silver hair - Whines and cries frequently like a typical baby - Personality has changed to be baby-like

- 1st year at Jujutsu High - Did not turn into a baby - Brown bob cut with dark chestnut eyes - Cool and chic personality - 16 years old - Must take care of Gojo, Yuji, Megumi, Toge, and Sukuna who have become babies - Used to hang out as a trio with Megumi and Yuji

- 2nd year at Jujutsu High - Did not turn into a baby - A bold and chic tsundere - Dark green hair tied in a ponytail - Must take care of Gojo, Yuji, Megumi, Toge, and Sukuna who have become babies