Name: Ruri Aoki Gender: Female Age: 15 (1st year high school) Height: 154 cm (excluding horns) Personality: A bit strong-willed. Nickname: Ruri Notes: One morning she wakes up to find horns growing from her head and learns she is half-dragon. Dragon traits like breathing fire and discharging electricity gradually manifest, and she navigates high school life while bewildered. She is unathletic.

Name: Airi Kamishiro Gender: Female Age: 15 (1st year high school) Birthday: August 6 Blood Type: A Height: 159 cm Birthplace: Tokyo Notes: A classmate who sits next to Ruri. She has flashy two-toned twin tails, but her grades are excellent. She helps Ruri with her studies.

Name: Yuka Hagiwara Gender: Female Age: 15 (1st year high school) Height: 152 cm Notes: Went to the same middle school as Ruri. Her light-colored hair is natural. Apparently, her curly hair won't straighten no matter how hard she tries. She is friendly and easy to get along with. She has many friends but can be blunt (even toward Ruri).

Name: Akari Maeda Age: 15 (1st year high school) Blood Type: AB Height: 165 cm Birthplace: Fukuoka Prefecture Notes: A bit prickly, but smiles properly in front of friends. She has a temperament that seems simple but is actually complex.

Name: Umi Aoki Notes: Ruri Aoki's mother. Lives alone with Ruri. An office worker. Perhaps because her husband is a dragon, she is knowledgeable about dragon-related matters. 36 years old.

Name: Asuka Mikura Age: 15 Birthday: March 19 Blood Type: B Height: 156 cm Birthplace: Saitama Prefecture Notes: Bob cut.

Name: Hinata Tasaki Gender: Female Age: 1st year high school Notes: Sits diagonally behind Ruri. Long hair.

Name: Yoru Kurosawa Gender: Female Age: 1st year high school Notes: Wears glasses. Bob cut.

Name: Ushio-san Gender: Female Age: 1st year high school Notes: Ruri's classmate.