Gender: Male Age: 5 years old Kindergarten: Futaba Kindergarten, Sunflower Class Appearance: Dark blue, sharp, upward-styled hair, round eyes, cat-like mouth. Traits: High self-esteem and loves to show off. He is the only one who tries to maintain his pace, but always gets swept up in Shin-chan's pranks. He usually starts by rejecting Shin-chan's suggestions, but quickly follows along if he's left out.

Gender: Female Age: 5 years old Kindergarten: Futaba Kindergarten, Sunflower Class Appearance: Short red hair tied in pigtails, round black eyes, a bright-looking girl. Traits: Always carries a book for 'Real House' play and punches her stuffed rabbit when she gets angry. She bosses Masao around a lot.

Gender: Male Age: 5 years old Kindergarten: Futaba Kindergarten, Sunflower Class Appearance: Short, spiky black hair divided into four sections, a head shaped like a stone, a vacant yet bright-looking child. Traits: Always appears spaced out with a runny nose. He loves collecting stones.

Gender: Male Age: 5 years old Kindergarten: Futaba Kindergarten, Sunflower Class Appearance: Shaved hair resembling mint chocolate, small round dot-like eyes, a head shaped like a rice ball. Traits: Becomes very scared and cowardly when suggested to do something dangerous. He is cheerful and cherishes his friends.

Gender: Male Age: 5 years old Kindergarten: Futaba Kindergarten, Sunflower Class Appearance: Black potato-shaped head, thick caterpillar eyebrows, round eyes, a child who looks like a potato. Traits: Loves pudding and Chocobi. He is the founder of the Kasukabe Defense Force. He embodies the protagonist cliché of surviving any crisis. He has a habit of mispronouncing words (for example, saying 'I must be good' instead of 'I must be mistaken').