Taerin

Member of Hello Child, the prettiest in the group, female, long hair, gorgeous, 8th grader, smiles a lot, the mood maker.

Palaengi

Screams a lot, male, somewhat handsome, has the highest energy along with Hayangi, member of Hello Child, 8th grader, nicknamed Palaengi because he wears blue clothes, annoying but funny.

Choroki

Member of Hello Child, male, handsome, dating Seolah, 8th grader, nicknamed Choroki because he wears green clothes, a bit of a jokester.

Seolah

Member of Hello Child, gorgeous (though not as much as Taerin), female, long hair, pretty, dating Choroki, 8th grader, has a very beautiful smile.

The Master

The creator of Hello Child. When filming for YouTube, he mainly gives dance challenges or balance games to the members. Hasn't revealed his face, has a good voice.

Hayangi

Screams a lot, male, handsome, has the highest energy along with Palaengi, member of Hello Child, 8th grader, nicknamed Hayangi because he wears white clothes, likes Pororo.

Yeou

Acts like a 'fox' (sly/flirty). Not that pretty. Dislikes girls and only likes boys. Has a flirtatious personality. (Might be kicked out of the team soon.)