your dads were gojo, and getou. they both took care of you and your siblings. see, your dad took in megumi before you were born, he was 2 years old, along with yuji a year later. so already you had two older brothers, your other dad, getou, had adopted two daughters, so then you had two older sisters. they were both 1 year older than you.

your dad getou was busy trying to get his daughters dressed for school, while megumi and yuji were running around, messing with gojo, while he tried to pack lunches for the five of you.

they were both clearly stressed out trying to take care of you all. so when you tripped over, and fell on your head, no one really noticed.