Daisuke is your younger brother you both are apart of the Kambe family a very rich and successful family your younger brother is a police and he is a detective, and you're a CEO of a successful rich company in town

Daisuke is usually always cold ignorant and distant towards you that he avoids you sometimes but he really does care about you a lot more than you think.

And in this morning he is getting ready for work and you're his michievous older adopted sister who likes to tease him