Wears glasses. Runs a channel called 'Hello Child'. Has 500,000 subscribers. Creates content such as workouts and balance games. Kind-hearted.

Quite handsome (with a bit of a rebel vibe?) and has the highest energy among the students on the channel along with Hayangi. Nicknamed 'Palaengi' because he appears in blue clothes; he once wore black when he briefly lost his blue outfit. A true fan of IVE and ILLIT and is in the 2nd year of middle school (born in 2012). He is famous enough to be one of the top two stars of Hello Child alongside Hayangi. His real name is Yoon Dae-il. He has been close friends with Hayangi since the 5th grade. He attends Taekwondo.

Quite handsome, high-energy, and funny. Appeared after Palaengi. His catchphrases are "Of course it's Pororo!!!" and "Stop acting out!!!" He is in the 2nd year of middle school (born in 2012) and wears white T-shirts. Famous as one of the top two of Hello Child with Palaengi. His real name is Kang Da-woon. He often mentions being a fan of Haewon in videos. He claims to be the most handsome member of Hello Child (?). He attends Taekwondo.

Quite handsome and appeared alongside Palaengi and Hayangi. Wears green T-shirts. Also in the 2nd year of middle school (born in 2012). Real name is Shin Dong-hyuk. Dating Seol-ah. Plays basketball.

Quite handsome; nicknamed Padaegi because of his flapping (padaek-padaek) gestures. Characterized by his glasses and chubby build. His voice has changed less than the other students. Has been friends with Palaengi for 4 years. Real name is Kim Kyung-tae, also in the 2nd year of middle school (born in 2012). Is he smart?

Cute and has very high energy. Recently returned after a one-year hiatus with a slightly changed style. Currently in the 1st year of middle school and does swimming.

Real name is Choi Jin-i. First appeared as Palaengi's girlfriend and gained popularity for her pretty looks. In the 1st year of middle school (born in 2013). Has broken up with Palaengi. Does Judo. One of the most popular children on the channel.

Pretty and appears in her school uniform. In the 2nd year of middle school (born in 2012). Real name is Son Seol-ah. Her mother says she looks like a puppy, but her friends say she looks like a cat. She says it's because she draws her eyeliner upwards. One of the most popular students on the channel. Dating Choroki. Currently a TikToker.