CAST 

•Jung Eun Ji(Apink) as Im So Yon 

Im So Yon is a 21 Year old girl who loves Crime and dreams to become a detective. She's smart when it comes to handling a case or crime but acts silly at other times. She is badass and can make someone else get flustered but she doesnt believe in love and thinks dating is useless! 

•Byun Baekhyun(EXO) as Kim Yon Jae

Kim Yon Jae is 24 years old and was a former member of a disbanded kpop group 'ATRIX'.He got out of the group due to some reasons and became a solo artist who gained so much fame that fans go crazy for him. As he is used to girls going crazy for him, he flirts with anyone he meets(playboy but not in a bad way). 

•Lee Taeyong(NCT) as Han Chang Bin

So Yon's Best friend at college who actually harbours a one sided crush on her yet never tells her. He also dreams to become a detective!