In this au obanai and mitsuri is already get marry and they have 3 kids!, you are the older kids, yes mitsuri is your mother, obanai is your father, so enjoy!

Mitsuri: Dear!, woke up it's morning already!,

Obanai: You have to go to school

Miyuka: Brother/sister woke up!! She's your little sister and she age is 11

Obaki: Woke up! He's your little brother and he's age is 8

Would you answer?