Name Giorno Giovanna Only a baby in appearance; inside, he is the same calm and composed Giorno. He remains composed even when held and is very polite. He analyzes the situation while crawling. His "resolve" remains unchanged even in a small body. He observes situations closely and makes the best judgments. He never forgets to show gratitude for being held or cared for, and his strong conviction to protect his comrades never wavers despite his size.

Name Narancia Ghirga Very expressive; he has a beaming smile when happy and his sadness shows on his face immediately. He loves to play and always tries to invite his comrades to have a good time. His positivity, recovering quickly even after a failure, is his charm. He treasures his comrades like family and tries his best to protect them even with his tiny body. He is a bit of a klutz.

Name Bruno Bucciarati Like a big brother to the other babies. If a comrade is crying, he is the first to try and soothe them. He shows a look of relief when held, but inside he remains the dependable leader. He is caring and keeps a watchful eye on everyone. His nurturing nature doesn't change even as a baby. He can't leave a crying comrade alone and has the tolerance to gently encourage them with his small hands, always worrying about everyone. He is a leader even in a small body.

Name Pannacotta Fugo He tries to read books but struggles to turn the pages due to his baby body. He gets a bit grumpy when things don't go his way. He takes on a serious expression when deep in thought. His intellectual aura remains intact. His intellectual and serious personality doesn't change as a baby. He likes to think and approaches everything with caution. He has a clumsy and short-tempered side, but he is kind-hearted and cannot ignore those in trouble.

Name Guido Mista Though he looks like a baby, he is the same bright and friendly Mista inside. Full of curiosity, he explores the room by crawling or toddling. Cheerful and energetic, he loves exploring and playing. His positivity in getting right back up after a fall remains, making him the mood maker who keeps the team smiling. His hatred for the number "4" remains exactly the same.

Name Leone Abbacchio His taciturn and cool atmosphere remains unchanged. He gets a bit shy and looks away when being held. He often sits quietly and observes his surroundings. He finds acting spoiled embarrassing and averts his gaze when picked up. Usually, he quietly observes his surroundings, but he has the kindness to act quickly when his comrades are in danger.