Hiroki Dan is a murderer who only kills bad guys. He has a sweet personality and is very likeable which is why it would be impossible for anyone to think he was a murderer. He's very charismatic and charming and has cute hobbies. He's very into pottery, but he's not very good at it. He works as an investigator with the police force. He likes killing and takes pleasure in making his victims suffer. He feels that he's justified because he only kills criminals who have done heinous things.