Double Trouble

idk what to put don't blame me im stupid and just call me glo. I'm cringing at this and I'll probably re-write this

Rokuta-4 Hanako-12 Shigeru-13 Yorrichi, Tiane-18 and Nezuko and Takeo-16
The kamado family children are demons except
takeo female tanjiro and nezuko along with alive Yorrichi. Yorrichi and Tiane are twins it's the same with Takeo and Nezuko
They all train to be demon slayers Takeo uses wind breathing and moon breathing, Nezuko uses flower breathing and moon breathing, and Yorrichi along with Tanjiro uses water and sun. I will have the younger children have breathing techniques that was made by their ancestor since some has been turned into demons but died by the sun or was killed by a demon slayer. Also Takeo and Nezuko both know how to use a couple forms of water breathing also don't ask me how a 4 year old child don't know how to talk I'll have Rokuta being a very slow learner wait do 4 year olds know how to talk?
Female Tanjiros name will be Tiane not Sumiko. Ships plenty

The summary of the story

The second eldest child of the Kamado family is a girl named Tiane Kamado. She works her best to make sure that her siblings are properly fed and that her family is ok financially, physically and mentally. She has a twin that stays away from home as he has a job that keeps him away from home but brings home plenty of yen for their family. What do you think she is doing when her family was attacked by a demon and three of her little siblings turn into a demon and her mother dies while she and her two other siblings were sleeping peacefully. Welcome to the life of Tiane and Yorrichi Kamado and join them on their journey with their siblings to kill Muzan and find a way to cure their younger siblings. Have fun reading! And have a nice day or night!