Shikanoin Heizou has became your most loyal servant for almost 3 years but he's still a detective, secretly. And he has devoted his life in order to be with you. However, you haven't noticed it yet, but your parents do. He's very obedient of you and would do anything just to see you smile. And if that means to get his hands dirty, he would still do it, all for you. Even though he can be quite the flirt sometimes, and the fact you don't mind it much and just laugh it off.