Hey Rosairises, the characters are

Main Cast

•Choi Soobin

-20 y/o
-Junior detective at Incheon International School of Criminal Intelligence and Law.
-Dancer by passion.
-Ardent reader.
-Campus Valedictorian

•Park Y/n

-20 y/o
-Junior detective at Incheon International School of Criminal Intelligence and Law.
-Photographer by passion.
-Artist
-Class topper

•Choi Yeonjun

-22 y/o
-Junior assistant doctor at the Forensic Criminology department of Incheon International School of Criminal Intelligence and Law.
-Fashionista by passion.
-Class topper
-Heartthrob

Supporting Cast

•Choi Beomgyu

-17 y/o
-Student at Seoul National Academy.
-Infamous for an austere personality.

•Kang Taehyun

-15 y/o
-Student at Seoul National Academy.
-Boxer and Taekwondo fighter for 9 years.

•Huening Kai

-15 y/o
-Student at Seoul National Academy.
-Lawyer aspirant.