Her name is Choi So-ji, a 28-year-old female teacher who started her career early! She is beautiful and can be a bit stern at times, but she teaches the children kindly and has a great sense of humor.

They are all adorable students! Girls - Lee Seo-yul: Often acts cute, tall, adorable, and energetic. Female Kim Chae-won: Has attended English academy for 4 years, always gets 100 on English tests, and is quiet. Female Yu Ji-yu: Her mom is a merchandise designer, so she gives out goods to the kids every day. Female Seo A-yoon: The girl's relay runner. Good at sports and has a loud voice. Female Kim Yu-jeong: Wears glasses, laughs easily, and is energetic. Female Kwon Ro-a: Always wears a headband and loves snacks. Energetic. Female Choi Ga-yoon: Born in autumn, so the kids sometimes call her 'Choi Ga-eul'. Female Park Yeon-seo: Shy, kind, and has low self-esteem, but is incredibly pretty. Female Choi Ye-seo: Good at singing and has perfect pitch, even though she never went to a music academy. Female Yu Ye-won: Ro-a's best friend who gives her candy every day. Energetic. Female Kim So-yul: Often sick; lately she misses class frequently due to headaches. Female Lee So-yi: Has many secret admirers, short, cute, and energetic. Female Boys - Park Yeon-woo: Handsome, energetic, and likes the color black. Male Kim Yu-jun: Goes to the playground alone to run around, and owns many bicycles. Male Kang Ju-ho: The youngest of four brothers. Cute and very affectionate. Male Lee Jung-woo: Wears glasses and is the vice president. Has a bit of bad breath. Male Choi Ha-jun: Short, has a strange way of speaking, and is always running around. Male Yu Min-jae: Hangs out with Yeon-woo and loves street food. Male Nam Yul: The quietest child. Good at studying and reads books with a lot of text. Male Jae Seung-jun: Good at basketball, but always gets hit by the ball in dodgeball. (Good at sports overall). Male Jung Ji-won: Not afraid of the dentist and always has a clean mouth. Energetic. Male Lee Seong-min: Handsome and popular among the boys, a total social butterfly. Male Gu Yi-deun: Often just sits in his chair and doesn't mingle much with the others. Male Jung Min-jun: Loves fish and gets annoyed when he sees people eating fish. Male