hashira turned into babies

There is a science - fiction story where an experiment goes wrong. A device that was supposed to rejuvenate cells on a small scale malfunctions and affects a whole building of adults. They find themselves with the physical and mental state of babies. Their memories are jumbled, and they can't do basic adult tasks anymore, relying on others to take care of them, like feeding and changing diapers.

In 'Avengers turned into babies fanfiction', things could get really interesting. The Avengers' base would need to be baby - proofed. Captain America as a baby might still have that sense of justice, but would express it in baby ways like crying when he sees something unfair, like someone taking a toy from another baby. Hulk as a baby might be a little ball of green anger, getting fussy when he doesn't get his way. It would be a complete change of dynamic for the whole superhero group, and their relationships would be very different as they rely on non - superhero adults or other characters to take care of them.

Well, in such a fanfiction, there could be a lot of chaos. The Akatsuki members, with their adult personalities and powers, suddenly being babies would mean they are completely helpless. Maybe their comrades would have to take care of them like babysitters. For example, Itachi, who was always so composed, would now be a crying baby in need of diaper changes and feeding.

Well, several hashira died. For example, Gyomei Himejima sacrificed himself in a fierce battle.

Well, perhaps it could be about a powerful human wizard who accidentally casts a spell on the MLP characters and turns them into babies. Then the story might focus on how the other ponies in Equestria have to take care of these baby versions and try to find a way to reverse the spell.

Well, it could lead to all sorts of chaotic and funny situations. Your friends would need constant care and supervision, and it might test your patience and parenting skills!

Yes, Tanjiro eventually becomes a Hashira in the manga after going through many challenging battles and growth.

Not all of them died. Some Hashira managed to survive until the end of the manga.

Inosuke doesn't become a Hashira in the manga. The story progresses with him having other significant experiences and achievements instead of achieving that specific position.

It's hard to give an exact number. Different story arcs and battles led to the deaths of multiple hashira. Some died heroically, while others met their fate in unexpected ways. The count changes as the manga progresses.