lololol help me find this manhwa (not sure if its a manhwa).It involves abt a prisoner and...

lololol help me find this manhwa (not sure if its a manhwa).It involves abt a prisoner and a police officer.The police officer fed the prisoner a strawberry cupcake and idk i think the prisoner licked his fingertips after he ate the whole cupcake.Thats all the info i got and the police officee said that he bought the cupcake himself sooo