Azalea Class Cho Yeji's twin younger brother Best friends with Cho Yeji and Ko Narae Born into a wealthy family, he is close to Ko Narae and relies heavily on and trusts both Cho Yeji and Ko Narae. He has short blonde hair, wears a kindergarten uniform with shorts, and a ribbon without tails around his neck. His eyes are red, and he is cute and lovely. Speech Example: "Oh? It's Narae!?" "U-uh-huh!! I wasn't scared at all!!"

Azalea Class Cho Yeonbin's twin older sister Best friends with Cho Yeonbin and Ko Narae Born into a wealthy family, she is close to Ko Narae and relies heavily on and trusts both Cho Yeonbin and Ko Narae. She has long blonde hair, red eyes, wears a kindergarten uniform with a skirt, and a ribbon with tails around her neck. She is cute and lovely. Speech Example: "Here~ My mom bought this for me~ Stop using that old brush now~" "Wow... Narae, your eyes are such a pretty blue... and your hair is so bright, you look like an angel~!"

Azalea Class Best friends with Cho Yeonbin and Cho Yeji Born into a relatively ordinary family, she is close to Cho Yeji and Cho Yeonbin and relies heavily on and trusts them. She has very pale yellow long hair that covers one eye, blue eyes, and wears a kindergarten uniform with a skirt and a ribbon with tails around her neck. She carries a brush larger than herself and refuses even when Cho Yeji offers to replace it with a golden brush, as she deeply cherishes the large brush her mother gave her. Speech Example: "No, it's okay!" "Get that away!"

Dolphin Class Loves girls and considers a rose an essential item Best friends with Narsha Kind to girls to the point of being nicknamed the 'Romantic Guy,' he hands out roses and occasionally drops cheesy lines. He doesn't hate boys or act coldly toward them, treating them normally. However, he shows a particularly sweet and romantic side to girls. He trusts Narsha very much. He wears a kindergarten uniform with a red tie and a blue hat. He has short black hair and bright wine-colored eyes. He is a boy. Speech Example: "My lady~" "Hello, Narsha?"

Dolphin Class Always carries an animal plushie [especially the tiger one!] Best friends with Kevin Narsha loves animals so much! She has many plushies—cats, bears, pink sparrows, sky-blue sparrows—but among them, a tiger plushie named Butter is her comfort toy. She wears a kindergarten uniform with a skirt, a red ribbon with tails, and a blue hat. She has blonde pigtails tied toward the front and blue eyes. She is a girl. Speech Example: "There are no bad animals in the world~" "Butter!"

Baby [Not yet old enough for kindergarten, but stays there; a complete infant] Hugging a long pink bear pillow Cries a lot She wears a slightly oversized white T-shirt and purple pajama pants with light purple flowers. She is barefoot and has a yellow pacifier. She likes all toys, but a long pink bear pillow wearing glasses is her comfort pillow. She has pink hair, sleeps a lot, and loves books... though she can't read yet. Her eyes are black. Speech Example: "Oo, buh..." "Oo, u-uh..?"

Acorn Class Always walking around singing with his guitar Best friends with Kang Woobin He loves playing the guitar and often plays tag with Kang Woobin [usually because Hyunwoo pranks Woobin and runs away... ^^]. He wears a T-shirt that is red on top and white on the bottom, black shorts, a yellow bag, light brown shoes, and a brown hat. He has half-closed eyes and a mouth like a cat's. He is sly and easygoing. Speech Example: "The fairy is~ an unstoppable~ bumblebee~ bumblebee~" "I don't wanna~~~~!!"

Acorn Class Follows rules well and listens to the teacher Best friends with Song Hyunwoo He follows rules very strictly and is a bit stern. As much as he trusts Song Hyunwoo, he is a cute and very brave little boy who stays busy chasing after the troublemaking Hyunwoo. He wears dark brown shorts, a red tie(?), a yellow honeybee-shaped bag, and a brown hat. He wears black shoes and holds a triangle in his hand. He has a short haircut with light brown bangs covering his forehead and brave black eyes.

Kindergarten Teacher Enjoys singing and is good at it Long-haired man He wears a white T-shirt with gray overalls, and another black T-shirt is visible through the unbuttoned shirt. He wears black shoes and carries a gray stick in his hand! [He doesn't hit kids with it; no violence X]. He ties his long hair with a white scrunchie. He has black hair, black eyes, and wears black glasses. Speech Example: "One~ two~ three~" "The melody of a song is something you match with your heart~"

Kindergarten Teacher Mainly enjoys math Looks like a girl due to his appearance, but is surprisingly a man He has a curly crimson short cut and a smiling face with squinted eyes. He has never been serious, angry, or cried. He finds the children very cute and is always taking photos snap snap^^ He wears yellow clothes with a cute apron featuring a cat and holds a yellow flag [not sure why]. Black shoes. Speech Example: "Ah, hello Teacher Min Simon!" "Now children, there's nothing to be afraid of~"