Zhang Ping character is autistic. He has difficulty in talking and socializing with people thus he will take him sometime to get close to Mr. Lan but eventually he will find away to get close to Lan thanks to his cooking skills (yes he's a great cook). Both of the characters are very smart specially Zhang Ping. The drama is more of a thriller than romance but all the characters have great chemistry and its worth it. Zhang Ping is young inspiring detective and he will eventually help Lan in finding the murders in the country. Zhang Ping is from poor background due to him being poor and not being from high society it will be nearly impossible for him to find his dream job but when he meets Mr Lan he will be able to work his dream job thanks to Mr Lan recommendation. Mr Lan is a minister of rites, he's also the son of former Traitor Grand General. Lan become a minister inorder to clear his father's name.