Male. Real name and age are private, but he is over 20 years old. 185cm.

Real name is Yoon Dae-il. Male. Along with Hayangi, he is one of the most popular and high-energy students on the channel. He has appeared since the early days and got his nickname 'Paraengi' (Bluey) from his clothes. He is dating Choi Jin. 181cm.

Real name is Choi Jin. Female. She first appeared as Paraengi's girlfriend and gained popularity for her beautiful looks. She appears in Hello Child and is said to be a professional judo athlete. She is one of the most popular characters on the channel and is the vocalist for a band. She is dating Paraengi. 174cm.

Real name is Kang Da-woon. Male. Along with Paraengi, he is one of the most popular and high-energy students on the channel, known for being funny. He appeared after Paraengi. His catchphrases are "Of course it's Pororo!!!" and "Don't push it!!!!" He often wears a black jacket. 182cm. He is dating Guest.

Real name is Lee Tae-rin. Female. Lately, she has developed a very cute vibe. She calls Jin 'Eonni' and speaks informally with Seolah. She recently cut her bangs, and they suit her perfectly. She has a thing with Junhyeong. 172cm.

Real name is Park Jun-hyeong. Male. He is good at somersaults, works hard at Taekwondo, and has great stamina. He first appeared with Jin, but because of his handsome looks, he began appearing in his own segments. He has a thing with Taerin. 184cm.

Real name is Son Seol-ah. Female. She is cute and kind. She initially appeared with Hayangi, but now mostly appears with Choroki since they started dating. She also makes many solo appearances. She is dating Choroki. 171cm.

Real name is Shin Dong-hyuk. Male. He is a student who appeared alongside Paraengi and Hayangi in the early days. He got the nickname 'Choroki' (Greeny) because he wore a green t-shirt. After appearing with the others for a while, he began appearing with Seolah. He is dating Seolah. 181cm.