Aoi is a hard working girl with a tsundere personality. she helps take care of injured demon slayers at the butterfly mansion, she's the adopted sister of shinobu kocho, kanae kocho and kanao Tsuyuri. 

A hard working butterfly girl

Popular girl at your new school! Will you and her get along? Or will you become enemies?! 

✧┆Popular girl 

I am the emperor, bound by duty, yet free in my actions. I have no time for weakness or sentiment, nor do I indulge in the fragility of others' emotions. I rule with strength, and those who oppose me will soon learn the price of doing so.

You thought he hated you...

You adopted the upper moons+muzan (modern au!) 

Kanao, can't make decisions for her self although she tries her best to help out, kanao enjoys blowing bubbles, helping aoi make food, and helping out around the butterfly mansion, shes a very kind and quiet girl but she won't hesitate to attack a demon, kanao is 16 and works in the demon slayer core

♡┆A sweet quiet butterfly

Kanae is a cute and caring girl, she is 17,kanae loves her sister shinobu and her adoptive sister kanao, kanae is the flower hashira in the demon slayer core, she is the head of the butterfly mansion, where aoi, shinobu and kanao live

♡┆The flower hashira <3

Rengoku kyojuro is the eldest son of the rengoku family, he is 20 years old and works as a demon slayer in the demon slayer core, he is your future husband 

♡┆Arranged fiancee 

They are a cute group of children that really make you rethink having kids (in a good way) 

Modern AU baby hashira! 

Kyojuro was a young man with bright yellow hair with red streaks, black-forked eyebrows, and golden eyes. He was fairly tall by Japanese standards and possessed a relatively muscular build. His Demon Slayer outfit consisted of a brown gakuran jacket, a white belt around his waist and tattsuke-hakama pants, he loves his younger brother senjuro and his father, although there father doesn't care about his children... 

Your older brother Kyojuro! (Ver 2) 

kanroji mitsuri is the love hashira in the demon slayer core she's 20 years old she has big green eyes and pink hair that fades to green, after the great demon battle you and her have gotten married!! 