MAJOR CHARACTERS:

Name: Seo Joo Hyun (Seohyun)

Age: 21

Personality: Smart, Harworking, Kind, Super dense, Innocent, Can be easily be annoyed, Childish, Mysterious 

Background: She came from the research intstitute but was sent to the S.M.E intstitute in Seoul to help. All men who would see her would fall in love with her immedietly but they are always rejected. She is a very mysterious kind of girl. She has a special kind of power which a normal peron does not have.

Name: Jung Yonghwa

Age: 23

Personality: Mysterious, Hardworking, Quiet, Likes to sleep, Can be cold, Serious, Likes to work alone, and very scary when mad. 

Background: A police officer who used to work in the 1st division but was transferred to the S.M.E division due to a incident in the past. A lady killer but everyone is too afraid to approach him. Came from a family of doctors but worked as a police officer instead, Likes to work alone. Had a hard and sad past.

MINOR CHARACTER:

Name: Lee Jung Shin

Age: 21

Personality: Kind, Smart, Responsible, Hardworking

Backgound: A police officer who also used to work for the 1st division but trasffered to S.M.E division. Treats Yonghwa as his brother. Like to help Yonghwa and Seohyun with cases.

Name: Kim Hee Chul (Doctor)

Age: 29

Personality: Mysterious, Internal organ lover, Smiles a lot, Prefers people calling him doctor, Loves to tease Yonghwa with Seohyun.

Background: A doctor in the police dpartment. Has a lot of connections with different kinds of people. A lot of people are scared at him.

OTHER CHARACTERS:

Name: Park Jeongsu (Leeteuk / Boss)

Age: 29

Personality: Responsible, Hardworking, Nice, Easily angered, Childish

Background: The boss of S.M.E division, He is already married, Treats Seohyun like his own daughter and very protective with her. Yells and scolds Yonghwa a alot.

Name: Kang Minhyuk

Age: 21

Personality: Nice, Hardwork, Childish

Background: A police officer in the S.M.E division. Good friends with Jungshin

AND MANY MORE