Masaki Shinnosuke

Hobbies: Looking after or assisting ojou-sama
Special Skill(s): Shooting, Grappling, Driving (But due to his dangerous way of driving, he's been banned by ojou-sama from going behind the wheel of any vehicle)
Favorite Food: Ojou-sama's homemade cooking
Least Favorite Food: Poison

A young man who works as the protagonist's butler and bodyguard.
No matter the difficult task, if it is his master's order he will complete it perfectly.
However whenever the protagonist gets mad at him his Hetare Switch gets flipped and he becomes completely useless.