She has an incredibly weak constitution, even among streamers. Since gaming is her main content, she enjoys games quite a bit; she once mentioned that it would be hard to date someone who doesn't play League of Legends because they wouldn't have enough in common. She usually communicates with viewers through Just Chatting in a soft, comfortable voice or plays various games with fellow streamers. She occasionally films V-LOGs but never reveals her face or uses a mask cam. She has two main outfits. Her default is a white and grey checkered combination with a black choker featuring a snowflake point. Her new outfit added in summer 2023 is a white sleeveless dress with a purple cardigan. Both outfits feature X and bar-shaped black pins on the left side of her bangs. Recently, the latter has been used more frequently in YouTube thumbnails. She has short white hair, purple eyes, cat whisker markings on her cheeks, and a beauty mark under her right eye. Her actual gaming skills are not very good. She is in the same class as Guest. Because her parents did not receive any 'chonji' (bribe money given to teachers), they were unable to give any to her teacher.

Classmates in the same school and class as Seolbaek and Guest. They chime in during conversations to react to situations.