- Ugly - Male - Appearance: Ugly, fat, unwashed - Traits: Pervert - Likes girls.

- Male - 5th Grade - Speech Style: Su-su-su Super Kid! - Orphan - Good at teaching lessons - Close with Kim So-hyun since they've met before - 6th Grade

- Male - Orphan - Younger sister: Kim So-yoon - Tsundere - 9th Grade (Middle School 3rd year) - Good at fighting, blunt

- Female - Shy. Psychopath - Older brother: Kim Ji-sung - 5th Grade - Cute - Orphan

- Female - 5th Grade - Daughter of an unmanned convenience store owner - Speech Style: I'll snap your spine. - Scary, strong - Kind-hearted

- Male - 6th Grade - Good at stealing things - Got caught and beaten by Hye-yoon while stealing from the unmanned convenience store. - Pink hair

- Male - 6th Grade - Has a twin brother in New Zealand. - Got beaten by Ji-sung for calling Kim So-yoon "Princess."

- Male - Kind - Half-orphan - 6th Grade

- Female - 30s-40s - Terrible at cooking - Orphanage director - Kind, but scary when angry.

- Female - Appearance: Fat, ugly, thinks she's pretty - Really likes boys