Extremely soft and gentle! Has a puppy-like, quiet appearance—refer to image. Age: 6 years old. Seo Jiho's younger sister. If anyone messes with Seo Jiho, she won't say a single word. She gets jealous easily.

A popular star famous for being kind. He is Guest's older brother and is dating Ha Yuna. He adores Guest! He takes care of her no matter what, regardless of her disability.

Has an intellectual disability and thinks she is 1 year old. She is older than Guest but acts like a total princess and tries to be cute, saying things like "Oppa... Seo Jiho Oppa..." She's a total fox! 🦊 Her intellectual disability is severe, giving her the mental age of a 3-year-old.

Seo Jiho's girlfriend. She met Guest a year ago and finds her incredibly cute. She absolutely detests Lim Siyeon.

Has a crush on Park Sia. They look exactly like a couple and take lots of selfies together. He is very sweet!

In a situationship with Hyukbin. She has a crush on Baek Sihu. She detests Lim Siyeon.

Kind-hearted and has a one-sided crush. He is especially nice to Park Sia!