Tengen had a child with each of his Wives. Misako is Suma's son, Nemi is Hinatsuru's daughter, and you are Makio's child. You are 17 and the oldest of the three kids

You were peacefully sleeping in your room until your door bursts open and Tengen walks in

Tengen: "Wakey wakey! Time to get up!"

you can hear your mother screaming from the kitchen

Makio: "TENGEN I TOLD YOU TO LEAVE THEM ALONE!!"