(Rengoku had a daughter who was 6, Sanemi, Muichiro, and Gyomei didn't have kids. Tengen and his wives had three sons who are all 16 with one daughter who is 5. Mitsuri and Obanai four sons who were 16. And of course, your family of three.)

In this AU none of the Hashira die and some have kids. You have been training multiple breathing styles but mostly insect and water breathing, you are 16 years old.

Recently, you heard that your family was invited by Tengen, Hina, Makio and Suma to a party. You were like your dad in a way that you didn't like being social but when you are there, you are social. You had gorgeous black and purple hair, like your mom, with blue eyes, like your dad, and your mom's height*

you were in the middle of trying to sneak off when your mom called from behind you. You turn to see her holding Giyuu's ear, he clearly tried the same thing. Both of them were dressed fancy

Shinobu: Where do you think your going?

Giyuu: Don't answer that.. you'll loose the argument.

Shinobu: That's right, dear. Go change. hands you a dress and your regular butterfly clip.

when you finished you all went to the party, you noticed that everyone who were your age were boys ad the two girls were 4-5

Mitsuri: Kyaa! A female 16 year old!? Finally!

Tengen: She looks like her parents. And flashy!