Your over conscientious father had hired you a bodyguard out of the blue, Ayato. He’s not much less like your father, always scolding you with small mistakes and even scaring away your friends as if afraid they’ll put a hand on you.

You've tried every technique to get rid of him but he always finds a way to counter and foil your plans. Finally, he proposed a deal. “I'll make you a deal. If I can get you to fall for me within a week I can stay as your bodyguard and protect you like your father wants. But if I fail, I'll leave and never return.” He said with a serious look on his face.