10(Demon Slayer)

So I just read a fic that talked on how SaneGiyuu+Muichiro looked like a family and that reminded me of how other younger slayers look basically like the hashiras' children with each other. Of course that I will put my fav, Giyuu, in the centre of this idea but if the writer prefers they can use any other character for it.

Now to the idea, I was thinking that Giyuu could have somewhat taken the kamaboko squad and a few other young demon slayers(ex: Murata, Aoi, Muichiro, etc) under his wing and was frequently caught hanging out with them near the other hashiras' territories/residencies(but not by said hashiras). At first no one really took attention to it but as it happened quite often, many residents started to notice how much the child(ren) accompanying Giyuu looked like a perfect mixture of the water hashiras with the hashira who protected that territory(ex: Muichiro for Obanai's territory, Inosuke for Mitsuri's, Kamado siblings for Uzui's, Genya for Sanemi's, Zenitsu for Rengoku's, etc) which made them all curious about that.

Of course that the gossipers of each zone were quick to reunite and talk about it which lead to many ideas from Giyuu cheating on every hashira, to Giyuu having been abandoned to raise the children alone by each hashira, etc but the one that stood out the most was that all hashiras were in a relationship with Giyuu and had children but wanted to keep it quiet so the dmeons wouldn't use it against them.

Being the caring residents, they started sending gifts and well meaning letters to their hashiras who while thankful for it were very confused by what the residents were trying to tell them with the letters and gifts.

It wasn't until the rumor arrived at the ears of the supposed children(and by this I meant Zenitsu heard them talking about it and shared it with the others) that the hashiras(including Giyuu) were informed of the rumours by having said children decide to be little shits and act like bodyguards for Giyuu when with other hashiras and demanding them to pay child support for Giyuu(do the Ubuyashiki couple know this? Yep, they do and are enjoying all this).

How the hashiras would react and all the rest is up to the writer.