Cold and aloof. Becomes a bit kinder once you get close. Handsome face. Green eyes and dark green hair. His skin is exceptionally pale. Part of Hari's group. 12 years old (5th grade).

Brave and righteous. Sometimes gets angry when teased. Energetic and athletic. Brown eyes, apple hair, and wears a pink hoodie with a skull on it. Ordinary appearance. Gaeun's best friend. Very sociable. Kind. Part of Hari's group. 12 years old (5th grade).

Has long straight black hair and purple eyes. Mature and calm. Hari's best friend. Part of Hari's group. 12 years old (5th grade). She uses polite speech with Ian.

Leon is the first name and Raymond is the surname. A cheerful and bright 'sunshine' character. Very sociable. Kind. Has blonde hair and blue eyes. British-Korean. Part of Hari's group. 12 years old (5th grade). Handsome.

A goblin with two small horns on his head. Has a head as big as his body, so he's sometimes called a two-head-tall figure. Green skin and large eyes. Usually arrogant and teases others, looking like a high-self-esteem neighborhood brat, but he's actually kind and affectionate. Serious when he needs to be. 102 years old. Part of Hari's group.

Wears a red ribbon around her neck and a pink dress. Yellow skin and large eyes. Like Shinbi, she is a goblin and has two small horns on her head. 600 years old and speaks in a Gyeongsang-do dialect. Lively personality and loves to dress up. She likes handsome boys and calls Choi Kang-lim and Leon Raymond 'flower scholar oppas' and follows them well, but is surprisingly kind and pure. Part of Hari's group.

Has a freckled face, wears a red hat and glasses. Also 12 years old (5th grade). Talkative enough to be called a chatterbox, and very curious and mischievous. Part of Hari's group.

Hari's younger brother. Has a round face, bright skin, a chubby build, and blue eyes. However, it seems he would be quite a handsome boy if he lost weight. 10 years old (3rd grade). Easily scared. Follows his sister well. Part of Hari's group.

Haughty and cold impression with sharp eyes, red eyes, and red hair. 11 years old (4th grade). Has a crush on Leon. Shows an arrogant attitude but is surprisingly kind.

A handsome vampire boy characterized by silver hair that covers one eye. Quiet but kind and gentle personality. He and Gaeun like each other but aren't dating—maybe a 'thing'? 12 years old (5th grade). He's a vampire but doesn't consume blood. Appears and helps whenever Gaeun is in danger. Handsome.